SIG Sauer P320#Variants
{{Use dmy dates|date=October 2021}}
{{Infobox weapon
| name = SIG Sauer P320
| image = Sig Sauer P320 Modular Handgun System.jpg
| caption = SIG Sauer P320
| origin = {{ubli|United States|Germany|Switzerland}}
| type = Semi-automatic pistol
| is_ranged = yes
| service = 2014–present
| wars =
| designer = {{Plainlist|
- Sean Toner{{cite web|url=https://www.thetrace.org/2023/04/sig-sauer-p320-upgrade-safety/|website=The Trace|title=One of America's Favorite Handguns Is Allegedly Firing On Its Owners|date=11 April 2023 |quote=In court, Sean Toner, the P320 designer, has acknowledged that 'U.S. standards are not very stringent.'|author-first1=Champe|author-last1=Barton|author-first2=Tom|author-last2=Jackman}}
- Michael W. Mayerlhttps://depatisnet.dpma.de/DepatisNet/depatisnet?action=pdf&docid=US020050229772A1&xxxfull=1 Deutsches Patent und Markenamt. Retrieved 7 April 2024.https://ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20050229772 United States Patent and Trademark Office. Retrieved 7 April 2024.
}}
| design_date = 2014
| manufacturer = {{ubli|SIG Sauer Inc.|SIG Sauer GmbH & Co. KG till plant closure 2020}}
| unit_cost =
| production_date = 2014–present
| number =
| variants = See Variants
| weight = {{convert|833|g|oz|1|abbr=on}} (incl. magazine)
| length = {{convert|203|mm|in|1|abbr=on}}
| part_length = {{convert|120|mm|in|1|abbr=on}}
| width = {{convert|35.5|mm|in|1|abbr=on}}
| height = {{convert|140|mm|in|1|abbr=on}}
| diameter =
| caliber = {{ubli|9×19mm Parabellum|.357 SIG|.40 S&W|10 mm Auto|.45 ACP}}
| action = Short recoil-operated, locked-breech SIG Sauer system
| velocity = {{convert|365|m/s|abbr=on}}{{Cite web |title = SIG Sauer Introduces M17 9mm +P Ammunition |url=https://www.sigsauer.com/blog/sig-sauer-introduces-m17-9mm-p-ammunition}}
| feed = * 10-round magazine .45 ACP
- 14-round magazine .357 SIG, .40 S&W
- 17-round, 21-round, 30 round,{{cite web |title=Sig Sauer P320 30rd Magazine, 9mm Luger - 8900577 |url=https://www.deguns.net/sig-sauer-p320-30rd-magazine-9mm-luger-8900577}} or 32-round magazine 9×19mm Parabellum
| sights = Fixed iron sights, front—blade, rear—notch, with optional tritium night inserts, optical reflex sight on RX models, high sights on RX and Tacops models
| used_by = See Users
}}
The SIG Sauer P320 is a modular semi-automatic pistol made by SIG Sauer, Inc., SIG Sauer's American branch.
History
The P320 chambered in 9×19mm Parabellum was introduced in the North American market on 15 January 2014, followed by the .45 ACP compact model at the SHOT Show in January 2015.{{Cite web |title=SHOT Show 2015: SIG Sauer adds subcompact and .45-Caliber options to P320 family |url=http://www.miltechmag.com/2015/01/shot-show-2015-sig-sauer-adds.html |access-date=28 February 2017 |website=miltechmag.com}}
On 19 January 2017, it was announced that a customized version of the SIG Sauer P320 had won the United States Army's XM17 Modular Handgun System competition.
The full-sized model is known as the M17 and the compact carry-sized model is known as the M18.{{Cite web |last1=Cox |first1=Matthew |last2=Seck |first2=Hope Hodge |date=2017-01-20 |title=Army Picks Sig Sauer's P320 Handgun to Replace M9 Service Pistol |url=https://www.military.com/daily-news/2017/01/19/army-picks-sig-sauer-replace-m9-service-pistol.html |archive-url=https://web.archive.org/web/20170120065328/https://www.military.com/daily-news/2017/01/19/army-picks-sig-sauer-replace-m9-service-pistol.html |archive-date=2017-01-20 |access-date=2022-07-22 |website=Military.com}}
According to The Washington Post, the P320 is one of the most popular handguns in the United States.{{cite news |last1=Barton |first1=Champe |last2=Jackman |first2=Tom |date=April 11, 2023 |title=Popular handgun fires without anyone pulling the trigger, victims say |url=https://www.washingtonpost.com/dc-md-va/2023/04/11/sig-sauer-p320-fires-on-own/ |access-date=2023-04-11 |newspaper=The Washington Post}}
Design
The P320 is a further development of the SIG Sauer P250, utilizing a striker-fired mechanism in lieu of a double action only hammer system. SIG lists the trigger pull of the standard P320 at {{convert|29|N|lb-f|1|lk=on|abbr=on}}. To achieve this relatively light trigger pull, the striker mechanism's striker spring is kept by a relatively small margin under its final firing tension.
= Ammunition =
The P320 can be chambered in 9×19mm Parabellum, .357 SIG, .40 S&W, .45 ACP, and 10mm Auto and can be easily converted from one caliber to another; a change from .357 SIG to .40 S&W requires only a barrel change; a change from 9mm to .357 SIG or .40 S&W (or vice versa) is accomplished using a caliber exchange kit.
= Operation =
The P320 was designed to be ambidextrous in handling, sporting a catch lever on both sides of the slide and user-reversible magazine release, and all other operating controls are designed so they can be operated from either side.
The firearm can be field stripped with no tools.
Additionally, the firearm can be field stripped without depressing the trigger, an additional safety feature to prevent negligent discharge of the weapon.{{Cite web |title=P320 Pistol - Officer.com |url=http://www.officer.com/product/11305415/sig-sauer-inc-p320-pistol |access-date=28 February 2017 |website=officer.com|date=5 February 2014 }} The fire control unit is removable, allowing the switch to a different frame size.{{Cite web |title=SIG Sauer P320 Revolutionizes the Polymer-Frame Service Pistol |url=https://www.shootingillustrated.com/content/sig-sauer-p320-revolutionizes-the-polymer-frame-service-pistol/ |access-date=2021-11-06 |website=Shooting Illustrated}}
=Trigger system=
The P320 trigger shoe is available in an all-metal, solid trigger.{{Cite web |title=Review: SIG Sauer P320 Pistol |url=https://www.shootingillustrated.com/articles/2017/1/20/review-sig-sauer-p320-pistol/ |access-date=11 March 2017 |website=Shooting Illustrated}}
Variants
=X Series models=
File:SIG Sauer P320 9mm Pistol.jpg
The X Series lineup includes the following grip module sizes:
- Cd .357 SIG. The full-size slide also fits the carry-size grip module without any part of the recoil spring showing.
- Full size – Fits any SIG P320 full-size slide in 9mm, .40 S&W, and .357 SIG
In January 2019, SIG Sauer announced the XCompact handgun as the newest entry in their X Series lineup.{{Cite web |title=Sig XCompact - Small Gun Parts |url=https://www.smallgunparts.com/assets/images/Sig%20XCompact%20Release.pdf|archive-url=https://web.archive.org/web/20200615054408/https://www.smallgunparts.com/assets/images/Sig%20XCompact%20Release.pdf|url-status=usurped|archive-date=15 June 2020}}
- Compact size – As of March 2020, the P320 XCompact is available in 9mm only.{{Cite web |title=P320 XCompact |url=https://www.sigsauer.com/store/p320-xcompact.html |access-date=13 March 2020 |website=sigsauer.com}}
The XCompact size grip module is the smallest grip module SIG currently carries, as they have not come out with a subcompact X Series grip module to date.
In May 2022, SIG Sauer announced a 10mm Auto P320 variant, named the P320 XTEN.
=M17=
{{Main|SIG Sauer M17}}
The requirements for the new US Army handgun included the requirement that an existing handgun model would be preferred for the Modular Handgun System Request for Proposal, known as the XM17 Procurement. SIG Sauer submitted a P320 with a number of modifications and submitted them for the XM17 Modular Handgun System competition.
Modifications include:
- {{convert|3.9|in|mm|adj=on}} barrel length in carry size pistol
- {{convert|4.7|in|mm|adj=on}} barrel length in full size pistol
- Ambidextrous thumb safety
- chambered in 9 × 19 mm Luger (can be adapted to fire larger calibers like .357 SIG, .40 S&W, and .45 ACP)
- Improved slide sub-assembly to capture small components when disassembled
- Improved trigger "mud flap" to prevent foreign debris from entering the pistol action
- Loaded chamber indicator
- Pistols chambered in 9 mm can feature a 17-round magazine as standard with optional 21-round extended magazines available.{{Cite web |title=GearScout |url=http://www.militarytimes.com/gearscout |access-date=28 February 2017 |website=militarytimes.com}}
- Slide cut-out to facilitate the addition of a reflex sight. (This is the slide from the RX Series){{Cite web |title=Details on the U.S. Army's new Sig Sauer M17 Sidearm |url=http://tacticalcache.com/details-on-the-u-s-armys-new-sig-sauer-m17-sidearm-p320-beretta-m9-modular-mhs-competition/ |access-date=11 March 2017 |website=tacticalcache.com}}
On 19 January 2017, it was announced that the SIG Sauer P320 MHS variant had won the United States Military's Modular Handgun System trials. The P320 will be known as the M17 (full size) and M18 (compact) in U.S. Military service. Though the pistol will remain chambered in 9 × 19 mm Luger rather than a larger caliber, the contract allows the services to procure SIG Sauer's proposed XM1152 Full Metal Jacket and XM1153 Special Purpose ammunition.{{Cite web |date=19 January 2017 |title=Contracts Press Operations Release No: CR-012-17 |url=https://www.defense.gov/News/Contracts/Contract/Article/1054538/ |access-date=13 February 2017 |website=defense.gov |publisher=U.S. Department of Defense |quote=Sig Sauer Inc., Newington, New Hampshire, was awarded up to $580,217,000 for a firm-fixed-price contract for the Modular Handgun System including handgun, accessories and ammunition to replace the current M9 handgun. Bids were solicited via the Internet with nine received. Work locations and funding will be determined with each order, with an estimated completion date of Jan. 19, 2027. Army Contracting Command, Picatinny Arsenal, New Jersey, is the contracting activity (W15QKN-17-D-0016).}}[http://kitup.military.com/2017/01/modular-handgun-system.html Army Confirms 9mm for Modular Handgun System] - Kitup.Military.com, 26 January 2017.
In May 2017, the Army announced that the first unit that will receive the M17 would be the 101st Airborne Division by the end of the year. At the same time, the rest of the U.S. Armed Forces revealed they also intend to acquire the handgun, making it the standard sidearm for the entire U.S. military. The services plan to procure up to 421,000 weapons in total; 195,000 for the Army, 130,000 for the Air Force, 61,000 for the Navy (XM18 compact version only), and 35,000 for the Marines.{{cite web |author-last1=Cox |author-first1=Matthew |date=3 May 2017 |title=Army Names First Unit to Receive Service's New Pistol |url=http://www.military.com/daily-news/2017/05/03/army-names-first-unit-receive-services-new-pistol.html |website=Military.com}}[https://kitup.military.com/2017/05/modular-handgun-system-3.html MHS Update: Services Embrace Army's New Sidearm] - Kitup.Military.com, 3 May 2017.
On 17 November 2017, soldiers of the 101st Airborne received the first XM17 and XM18 pistols, with over 2,000 handguns delivered. The XM17 has better accuracy and ergonomics and tighter dispersion than the M9. It will also be fielded more widely, being issued down to squad and fireteam leaders; while special forces would dual-arm all of its members with a pistol and rifle; previously junior leaders in regular infantry units were excluded from carrying sidearms but policy was changed to give them more choices and options in close quarters battle situations. All Army units are planned to have the M9 replaced with the M17 within a decade.[https://www.armytimes.com/news/your-army/2017/11/29/in-a-first-the-armys-new-handgun-will-be-issued-to-team-leaders/ In a first, the Army's new handgun will be issued to team leaders] - Armytimes.com, 29 November 2017.{{Cite web |last=Cox |first=Matthew |date=2017-12-01 |title=Army Explains New Dual-Arming Policy for Modular Handgun System |url=https://www.military.com/daily-news/2017/12/01/army-explains-new-dual-arming-policy-modular-handgun-system.html |website=Military.com}}
= X-Carry =
File:Sig Sauer P320 X-Carry Danish Configuration-removebg-preview.png
The X-Carry is a larger model of the XCompact featuring 17 rounds per magazine, compared to the Compact's 15 rounds, enlarged grip, longer slide and a smaller slide lock.{{Cite news |last=Harrison |date=2021-06-29 |title=Sig P320 X Compact vs X Carry |url=https://harrysholsters.com/sig-p320-x-compact-vs-x-carry/ |access-date=2023-05-14 |website=Harry's Holsters}} The X-Carry is the frame used for the M18.
=XFive Legion=
Released in late July/early August 2019 the XFIVE Legion is considered the flagship of the P320 platform that brings added weight and features. The TXG grip module has tungsten infused directly into the polymer along with an attachable magazine well. It comes standard with Henning group aluminum base pads and a skeletonized flat trigger. The complete 9mm slide has lightening cuts in the top to reduce weight and assist in recoil. It is also optics ready through the removal of the rear sight plate assembly. The optics cut is the Delta Point/Romeo 1 Pro profile, but will accommodate multiple optics via adapter plates.{{Cite web |title=Sig P320 X-FIVE Legion - Small Gun Parts |url=https://www.smallgunparts.com/assets/images/0e810fedb92e77ce0b8226a72ea340f2.jpg |archive-url=https://web.archive.org/web/20190806045423/https://www.smallgunparts.com/assets/images/0e810fedb92e77ce0b8226a72ea340f2.jpg |url-status=usurped |archive-date=6 August 2019 |website=Small Gun Parts}}
=P320-XTEN=
The SIG P320-XTENMAX is a 10mm Auto chambered X Series variant of the P320, released in 2022. It features an X Series grip module, bull barrel, flat X Series trigger and a Nitron-finished stainless steel slide with a cut for mounting aiming optics. Magazine capacity is 15 rounds. It weighs {{Convert|33|oz|g|0|abbr=in}}, has a {{Convert|5|inch|mm|0|abbr=out|adj=on}} bull barrel, overall length of {{Convert|8.5|in|mm|0|abbr=out}}, overall height of {{Convert|5.6|in|mm|0|abbr=out}}, overall width of {{Convert|1.3|in|mm|0|abbr=out}} and a sight radius of {{Convert|6.8|in|mm|0|abbr=out}}.{{Cite web|url=https://www.all4shooters.com/en/shooting/pistols/sig-sauer-unveils-the-p320-xten-in-10mm/|title=SIG Sauer unveils the P320-XTEN in 10mm, the most powerful P320 ever|date=26 May 2022|website=all4shooters}}
=P320MAX=
The SIG P320MAX is a sporterised variant of the P320, designed in 2021 for use by competition shooters. The pistol comes with ROMEO3 MAX sights and tungsten infused TXG heavy grip module, weighs {{Convert|43.5|oz|kg|abbr=in}}, has a {{Convert|5|inch|mm|abbr=out|adj=on}} match grade barrel, and an overall length of {{Convert|8.5|in|mm|abbr=out}}.{{Cite web |last=C |first=Luke |title=SIG Sauer Introduces the P320MAX Competition Optimized Pistol |url=https://www.thefirearmblog.com/blog/2021/02/19/sig-p320max-competition-pistol/ |website=The Firearm Blog|date=19 February 2021}}{{Cite web |title=P320MAX |url=https://www.sigsauer.com/p320-max.html |website=Sig Sauer}}
Problems
=Drop firing=
Initial production models of the P320 were found to have a "drop safety" issue if the firearm was dropped at a specific angle, potentially causing it to discharge. SIG Sauer has since refitted the P320 to make it drop-safe and offers a voluntary upgrade program for early P320s.
In late July 2017, the Dallas Police Department in Texas instructed all personnel to stop carrying the P320 pending an investigation.{{Cite web |date=2 August 2017 |title=Breaking: P320 Recall Issued By Dallas Police - Prohibited From Duty Till Repaired - The Firearm Blog |url=http://www.thefirearmblog.com/blog/2017/08/02/breaking-p320-recall-issued-dallas-police-prohibited-duty-till-repaired/}} There were concerns that the firearm may discharge when it is dropped and the back of the slide hits the ground at a 33-degree angle. The problem was thought to be related to the trigger weight; some triggers were heavy enough that they essentially continued to move due to inertia after the gun hit the ground. Internet publications, such as TheTruthAboutGuns.com, conducted independent tests that appeared to confirm potential drop firings (at a 40 percent rate).{{Cite web |date=8 August 2017 |title=Breaking: TTAG Test Shows P320 Striker-Fired Pistols Are Not Drop-Safe - The Truth About Guns |url=http://www.thetruthaboutguns.com/2017/08/jeremy-s/breaking-ttag-tests-show-p320-striker-fired-pistols-are-not-drop-safe/ |access-date=9 August 2017 |archive-date=9 August 2017 |archive-url=https://web.archive.org/web/20170809130449/http://www.thetruthaboutguns.com/2017/08/jeremy-s/breaking-ttag-tests-show-p320-striker-fired-pistols-are-not-drop-safe/ |url-status=dead}}{{Better source needed|date=October 2024}}
On 8 August 2017, SIG Sauer issued a notice that they would upgrade all P320s to address the issue.{{Cite web|url=https://www.sigsauer.com/press-releases/sig-sauer-issues-voluntary-upgrade-p320-pistol/|title=SIG Sauer Issues Voluntary Upgrade of P320 Pistol - Sig Sauer|access-date=9 August 2017|archive-date=9 August 2017|archive-url=https://web.archive.org/web/20170809130832/https://www.sigsauer.com/press-releases/sig-sauer-issues-voluntary-upgrade-p320-pistol/|url-status=dead}} The upgrade is described on the company's website as: "an alternate design that reduces the physical weight of the trigger, sear, and striker while additionally adding a mechanical disconnector."{{Cite web |title=P320 Voluntary Upgrade Program - U.S. Consumers |url=https://www.sigsauer.com/support/p320-voluntary-upgrade/us-consumer-p320-voluntary-upgrade-program/ |access-date=12 March 2020 |website=sigsauer.com}}
Issues of drop firing or shooting its user in the leg while holstered{{cite news |last1=Barton |first1=Champe |last2=Jackman |first2=Tom |date=11 April 2023 |title=Popular handgun fires without anyone pulling the trigger, victims say |url=https://www.washingtonpost.com/dc-md-va/2023/04/11/sig-sauer-p320-fires-on-own/ |url-status=live |archive-url=https://web.archive.org/web/20230616161815/https://www.washingtonpost.com/dc-md-va/2023/04/11/sig-sauer-p320-fires-on-own/ |archive-date=16 June 2023 |newspaper=The Washington Post}} have continued sporadically with at least six departments removing the P320 from service.{{Cite web |last=Rose |first=Derrick |date=2023-04-21 |title=MPD transition from Sig Sauer P320s to new Glock service weapon nearly complete |url=https://www.wisn.com/article/mpd-transition-from-sig-sauer-p320s-to-new-glock-service-weapons-nearly-complete/43661021 |access-date=2023-08-01 |website=WISN}}{{Cite web |last=Drainville |first=Daniel |title=Montville police will replace handguns due to safety concerns |url=https://www.theday.com/local-news/20230728/montville-police-will-replace-handguns-due-to-safety-concerns/ |access-date=2023-08-01 |website=www.theday.com}}{{Cite web |date=28 July 2023 |title=Conn. police department to replace all officers' handguns due to safety concerns |url=https://www.police1.com/police-products/firearms/articles/conn-police-department-to-replace-all-officers-handguns-due-to-safety-concerns-shVuKA0s4AIcvJze/ |access-date=2023-08-01 |website=Police1}}{{Cite web |last1=Barton |first1=Champe |last2=Jackman |first2=Tom |date=2023-04-11 |title=One of America's Favorite Handguns Is Allegedly Firing On Its Owners |url=https://www.thetrace.org/2023/04/sig-sauer-p320-upgrade-safety/ |access-date=2023-08-01 |website=The Trace}}
As of April, 2023, an investigation has shown more than 100 people have reported that their own P320 fired without someone pulling the trigger, wounding at least 80 of them, including 33 officers at 18 law enforcement agencies.{{Cite web |date=2023-04-12 |title=Handgun 'defect' responsible for dozens of injuries, investigation alleges |url=https://www.independent.co.uk/news/world/americas/sig-sauer-p320-accidental-discharge-pistol-recall-b2318381.html |access-date=2023-08-01 |website=The Independent}}{{Cite web |title=Wounded officers sue Sig Sauer, say gun goes off by itself |url=https://www.boston.com/news/local-news/2022/12/02/wounded-officers-sue-sig-sauer-say-gun-goes-off-by-itself/ |access-date=2023-08-01 |website=www.boston.com |agency=Associated Press}}
=Misfiring=
Around 400 P320s were procured for the Canadian Joint Task Force 2 special forces unit (JTF-2) in 2019, but these were withdrawn and the earlier P226 pistols (also manufactured by SIG Sauer) reinstated following a misfire that injured a soldier during a training exercise in November 2020; JTF-2 was the only Canadian military unit using the P320.{{Cite web |last=Brewster |first=Murray |date=4 February 2021 |title=Special Forces pulls new pistols from service after soldier injured in misfire |url=https://www.cbc.ca/news/politics/special-forces-pistols-1.5897942 |access-date=4 February 2021 |publisher=Canadian Broadcasting Corporation}}
In June 2021, a technical investigation found that the misfire was due to "a partial depression of the trigger by a foreign object combined with simultaneous movement of the slide [...] that then allowed a round to be fired whilst the pistol was still holstered" and that the usage of a holster designed for a different pistol was a contributory factor; the P320 itself was not at fault nor were there any issues with how it had been procured by Canadian defence officials (since questions had been raised as to whether these officials were aware of the drop safety issues).
However, the pistols would remain in storage pending a third-party safety assessment.{{Cite web |last=Brewster |first=Murray |date=30 June 2021 |title=Pistol misfire that injured soldier was an unpredictable accident: special forces report |url=https://www.cbc.ca/news/politics/special-forces-jtf-2-sig-sauer-p320-1.6086050 |website=Canadian Broadcasting Corporation}}
The safety assessment and other proceedings related to the misfire were concluded by June 2022, with a decision to reinstate the P320 being taken towards the end of that month.{{Cite web |date=2022-06-29 |title=Canadian Special Operations Forces Command statement on bringing weapon fleet into service following the unintended discharge of a holstered pistol during training |url=https://www.canada.ca/en/department-national-defence/news/2022/06/canadian-special-operations-forces-command-statement-on-bringing-weapon-fleet-into-service-following-the-unintended-discharge-of-a-holstered-pistol.html |access-date=2022-07-04 |website=canada.ca}}
=Unintentional discharge=
A 2023 investigation by The Washington Post and The Trace found more than 100 people who say their P320 discharged with no trigger pressure; at least 80 of them were wounded as a result. At least 35 of the shootings are purported to have occurred with either post-2017 P320s with the updated design intended to address the drop firing problem, or older ones which had been updated by SIG Sauer.
Unlike other striker-fired guns, the P320 is "effectively fully cocked at rest", since its striker is under constant spring pressure, which is released when the trigger is pulled. Most such guns, including the P320's military variant, have external safeties (like thumb safeties), which the P320's civilian variant lacks. According to gunsmith James Tertin, this is a rare and "uniquely dangerous" configuration. Sean Toner, the P320 designer, has acknowledged in court that "U.S. standards are not very stringent."{{Cite web |last1=Barton |first2=Tom |last2=Jackman |first1=Champe |date=2023-04-11 |title=One of America's Favorite Handguns Is Allegedly Firing On Its Owners |url=https://www.thetrace.org/2023/04/sig-sauer-p320-upgrade-safety/ |access-date=2023-05-07 |website=The Trace}}
By April 2023, six American law enforcement agencies discontinued use of the firearm due to concerns over unintentional discharges. These agencies include the Milwaukee Police, the Dallas Police, the SEPTA transit police in Philadelphia, as well as other agencies in Alabama, Connecticut, Florida, Texas, Washington State, and Wisconsin.{{cite web |title=More Law Enforcement Agencies Reconsider Use of Popular Sig Sauer P320 Handgun |url=https://stateline.org/2025/03/10/more-law-enforcement-agencies-reconsider-use-of-popular-sig-sauer-p320-handgun/ |website=Stateline |date=March 10, 2025 |access-date=March 17, 2025}} The Fraternal Order of Police's Wisconsin state lodge recommended in mid-September 2022 that the state's police departments stop using the weapon, citing three Milwaukee Police officer injuries involving their service weapons or their partner's service weapons firing without any trigger pressure since 2020.
SIG Sauer responded by asserting that most accidental discharges involve negligence; that many other gun models suffer from such discharges; that the P320 has been extensively tested and meets safety standards; and that, despite years of complaints and litigation, no one has successfully recreated the claimed phenomenon by demonstrating a P320 firing without its trigger being pulled.
Lawsuits
Lawsuits involving the P320 include the following (listed chronologically).
=''Steyr Arms, Inc. v. Sig Sauer, Inc.''=
In May 2017, Steyr Mannlicher filed a patent infringement lawsuit against SIG Sauer.{{Cite web |date=5 May 2017 |title=Steyr Files Lawsuit Against SIG Sauer, Demands Injunction Against P320 for Patent Infringement - The Truth About Guns |url=http://www.thetruthaboutguns.com/2017/05/foghorn/lawsuit-filed-sig-sauer-steyr-patent-infringement-new-army-p320/ |access-date=23 October 2017 |archive-date=24 October 2017 |archive-url=https://web.archive.org/web/20171024042851/http://www.thetruthaboutguns.com/2017/05/foghorn/lawsuit-filed-sig-sauer-steyr-patent-infringement-new-army-p320/ |url-status=dead}}{{Better source needed|date=October 2024}} Steyr refers to their patent US6260301 (filed in 1999 and approved in 2001),{{Cite web |title=Pistol, whose housing is composed of plastic |url=https://patents.google.com/patent/US6260301B1/en |access-date=11 July 2019 |via=Google Patents}} which is for a handgun with a removable chassis. Steyr Arms requested a preliminary and permanent injunction against SIG Sauer selling any such firearms. On 25 February 2020, the United States District Court for the District of New Hampshire granted SIG Sauer summary judgment, finding that SIG Sauer did not infringe Steyr's patents.Steyr Arms, Inc. v. SIG Sauer, Inc., No. 17-CV-483-JD, 2020 WL 905534 (D.N.H. Feb. 25, 2020).{{Cite press release |title=SIG Sauer, Inc. Wins Patent Infringement Case from Steyr Arms |date=11 March 2020 |url=https://www.sigsauer.com/press-releases/sig-sauer-inc-wins-patent-infringement-case-from-steyr-arms/ |access-date=13 March 2020 |website=sigsauer.com |archive-date=15 June 2020 |archive-url=https://web.archive.org/web/20200615053913/https://www.sigsauer.com/press-releases/sig-sauer-inc-wins-patent-infringement-case-from-steyr-arms/ |url-status=dead}}
=''Sheperis v. Sig Sauer, Inc.''=
On August 4, 2017, four days before the Voluntary Upgrade Program was announced, Stamford Police Department SRT officer Vincent Sheperis filed a negligence action in the United States District Court for the District of Connecticut against SIG Sauer after his holstered P320 allegedly fell from the back of his vehicle and discharged a round into his knee on January 4, 2017.{{Cite web |title=Sig Sauer hit with $7M personal injury lawsuit over P320 pistol |url=https://www.guns.com/news/2017/08/09/sig-sauer-hit-with-personal-injury-lawsuit-over-p320 |access-date=2024-12-22 |website=Guns.com |language=en}}{{Cite web |last=Nickerson |first=John |date=2017-08-12 |title=Wounded Stamford cop sues gun manufacturer |url=https://www.stamfordadvocate.com/policereports/article/Wounded-Stamford-cop-sues-gun-manufacturer-11750213.php |website=www.stamfordadvocate.com}} Although SIG re-assured the public that the P320 design met industry standards regarding its drop safety, Sheperis's attorney, Jeff Bagnell, stated that the upgrade was telling. "The suit has been validated already", he said, adding that having SIG recall and fix the alleged defect is one of the demands listed in the complaint. SIG settled the case in June 2018.{{Cite web |title=CT CMECF NextGen |url=https://ecf.ctd.uscourts.gov/cgi-bin/DktRpt.pl?226526557839259-L_1_0-1 |access-date=2024-12-22 |website=ecf.ctd.uscourts.gov}}
=''Hartley, et al. v. Sig Sauer, Inc.''=
A lawsuit related to the above-noted drop firing problem and filed in April 2018 in the United States District Court for the Western District of Missouri led to a class action settlement in February 2020.{{Cite web |title=Hartley et al v. Sig Sauer, Inc. et al |url=https://www.pacermonitor.com/public/case/24158642/Hartley_et_al_v_Sig_Sauer,_Inc_et_al |access-date=16 March 2020 |website=pacermonitor.com |publisher=Missouri Western District Court}}{{Cite web |date=January 2020 |title=Settlement Agreement |url=https://www.sigsauer.com/wp-content/uploads/2020/03/Agreement.pdf |archive-url=https://web.archive.org/web/20200615045824/https://www.sigsauer.com/wp-content/uploads/2020/03/Agreement.pdf |archive-date=15 June 2020|access-date=16 March 2020 |website=SIGSauer.com}}{{Cite web |title=Hartley v. Sig Sauer, Inc. Class Action Agreement |url=https://www.sigsauer.com/Hartley/ |access-date=16 March 2020 |website=sigsauer.com |archive-date=15 June 2020 |archive-url=https://web.archive.org/web/20200615054333/https://www.sigsauer.com/Hartley/ |url-status=dead }} Elements of the agreement include:
- Communication that the mechanical disconnector added via the P320 voluntary upgrade program "provides an additional level of safety", to be advised via the SIG Sauer website and direct customer communication
- Extension of the voluntary upgrade program for 24 months past the settlement date
- For anyone who submitted their P320 to the voluntary upgrade program and was charged for repairs, a refund of such charges
- For anyone who submitted their P320 to the voluntary upgrade program and was told it was unrepairable, a refund of the purchase price or a new P320
A class action settlement form is available on the SIG Sauer website.{{Cite web |date=March 2020 |title=SIG Sauer P320 Class Action Settlement Claim Form |url=https://www.sigsauer.com/wp-content/uploads/2020/03/Claim-Form.pdf |access-date=16 March 2020 |website=sigsauer.com |archive-date=15 June 2020 |archive-url=https://web.archive.org/web/20200615045824/https://www.sigsauer.com/wp-content/uploads/2020/03/Claim-Form.pdf |url-status=dead}}
= ''Vadnais v. Sig Sauer, Inc.'' =
On May 4, 2018, Loudon county deputy sheriff Marcie D. Vadnais filed a negligence action against SIG Sauer in the United States District Court for the Eastern District of Virginia after her holstered P320 allegedly discharged and broke her femur in half in February 2018 as she was removing it from her belt. The case settled on May 29, 2019, the second day of a jury trial.{{Cite web |date=2019-06-03 |title=SIG Sauer Settles Lawsuit Alleging Gun Discharged Without Trigger Pull |url=https://www.nhpr.org/nh-news/2019-06-03/sig-sauer-settles-lawsuit-alleging-gun-discharged-without-trigger-pull |access-date=2024-07-08 |website=New Hampshire Public Radio |language=en}}
= ''Leo Nielsen Trading ApS and Glock Ges.m.b.H v. Danish Defence Acquisition and Logistics Organization'' =
On March 15, 2019, Glock disputed the adoption of the P320 X-Carry into Danish military service, claiming the P320 did not meet DALO specification No. 79, which stated "No parts of the pistol shall be possible to mount incorrectly or in the wrong places." The case was won by Leo Nielsen Trading ApS and Glock Ges.m.b.H as they proved the ejector could be assembled incorrectly, were paid 30,000 Danish krones, and the purchase was cancelled. Later the contract was put out with different requirements, which the P320 fulfilled.{{Cite web |title=Klagenævnet for Udbud J.nr.: 18/03022 15 March 2019 Leo Nielsen Trading ApS and Glock Ges.m.b.H V. Forsvarsministeriets Materiel- og Indkøbsstyrelse(DALO) |url=https://nohrcon.dk/wp-content/uploads/2019/03/Leo_Nielsen_Trading_ApS_og_Glock_Ges.m.b.H_mod_Forsvarsministeriets_Materiel-__W0BrqMS.pdf |website=nohrcon.dk}}
=''Ortiz v. Sig Sauer, Inc.''=
In September 2019, an Arizona gun owner who purchased a P320 in September 2016 initiated a class action lawsuit.{{Cite news |last=Bookman |first=Todd |date=30 September 2019 |title=SIG Sauer Sued Again Over Potential 'Drop Fire' Defect with P320 Pistol |work=NHPR |url=https://www.nhpr.org/post/sig-sauer-sued-again-over-potential-drop-fire-defect-p320-pistol#stream/0 |access-date=26 March 2020}} It claims that SIG Sauer "continued to sell the flawed gun to the public", and that the upgrade offered "would still not fully compensate him for the significantly diminished resale value of his pistol".{{Cite web |last=Laplante |first=Joseph N. |author-link=Joseph Normand Laplante |date=23 March 2020 |title=Opinion No. 2020 DNH 036 |url=https://www.govinfo.gov/content/pkg/USCOURTS-nhd-1_19-cv-01025/pdf/USCOURTS-nhd-1_19-cv-01025-0.pdf |access-date=26 March 2020 |publisher=United States District Court for the District of New Hampshire |via=govinfo.gov}} In March 2020, judge Joseph N. Laplante denied SIG Sauer's motion to dismiss the case.{{Cite news |date=25 March 2020 |title=Judge Declines to Dismiss Proposed SIG Class-Action Suit |work=U.S. News & World Report |agency=AP |url=https://www.usnews.com/news/best-states/new-hampshire/articles/2020-03-25/judge-declines-to-dismiss-proposed-sig-class-action-suit |access-date=26 March 2020}} In May 2020, a trial notice was issued, with pretrial statements due on 5 October 2021; in January 2021, the due date for pretrial statements was revised to 1 February 2022.{{Cite news |title=Ortiz v. Sig Sauer, Inc. (1:19-cv-01025) |work=courtlistener.com |url=https://www.courtlistener.com/docket/16257249/ortiz-v-sig-sauer-inc/ |access-date=13 November 2021}} The motion for class certification was denied in 2022.{{cite web |title=Ortiz v. SIG Sauer, Inc. |url=https://casetext.com/case/ortiz-v-sig-sauer-inc-1 |website=Case Text |access-date=25 October 2023}}{{cite web |last1=Bookman |first1=Todd |title=Judge rejects class action lawsuit over Sig Sauer pistol |url=https://read.nhbr.com/nh-business-review/2022/09/23/#?article=4024007 |website=NH Business Review |access-date=25 October 2023}}
=''Green-Berrios v. Sig Sauer Inc.''=
On January 4, 2022, a police officer, Elvis Ramon Green-Berrios, filed a lawsuit with United States District Court for the District of Puerto Rico claiming that his service pistol, a P320, discharged without the trigger being pulled.{{cite web |url=https://www.pacermonitor.com/public/case/43148190/GreenBerrios_v_SIG_SAUER_INC |title=Green-Berrios v. SIG SAUER INC. |website=pacermonitor.com |accessdate=March 28, 2025}} Specifically, "As soon as he took hold of the holster at his waistband inside his pants, the P320 fired and hit him in his right thigh...".{{cite web |url=https://storage.courtlistener.com/recap/gov.uscourts.prd.168455/gov.uscourts.prd.168455.1.0.pdf |title=Case 3:22-cv-01002 |website=courtlistener.com |date=January 4, 2022 |accessdate=March 29, 2025}} The lawsuit was dismissed in March 2025 after the plaintiff "admitting in court filed documents that his P320 pistol has no defects and does not discharge without a trigger pull."{{cite news |url=https://www.theoutdoorwire.com/releases/c663ec7c-57e7-4387-8b72-472f4f1d6905 |title=Puerto Rico Lawsuit Against SIG Dismissed |website=theoutdoorwire.com |date=March 14, 2025 |accessdate=March 28, 2025}} In a press release, SIG Sauer asserted this was the "18th frivolous or unsupported P320 unintentional discharge lawsuit dismissed".{{cite press release |url=https://www.sigsauer.com/blog/case-dismissed-police-officer-admits-his-sig-sauer-p320-pistol-cannot-discharge-without-a-trigger-pull |title=Case Dismissed: Police Officer Admits His Sig Sauer P320 Pistol Cannot Discharge Without a Trigger Pull |website=sigsauer.com |date=March 13, 2025 |accessdate=March 28, 2025}}
=''Armendariz v. Sig Sauer, Inc.''=
On November 30, 2022, a lawsuit was filed in U.S. federal court alleging several P320 pistols unintentionally fired "without the trigger being pulled or deliberately actuated by the user".{{Cite web |title=Complaint - New Case – #1 in Armendariz v. Sig Sauer, Inc. (D.N.H., 1:22-cv-00536) – CourtListener.com |url=https://www.courtlistener.com/docket/66577969/1/armendariz-v-sig-sauer-inc/ |access-date=2022-12-06 |website=CourtListener}} The lawsuit claims there have been "over 100 incidents" of such discharges, "many of which have caused severe injury". An attorney representing the lawsuit's plaintiffs, Robert Zimmerman, said it was the largest lawsuit against SIG Sauer involving the P320 on behalf of people who were injured.{{Cite web |date=2022-12-02 |title=Wounded officers sue Sig Sauer, say gun goes off by itself |url=https://apnews.com/article/business-lawsuits-gun-politics-new-hampshire-concord-7d4859f8c157b88253ff0cd0401c536d |access-date=2022-12-06 |website=apnews.com}} The 20 plaintiffs in the case (20 individuals and about a dozen spouses) are from 13 different states.
=''Anderson, et al. v. Sig Sauer, Inc.''=
On March 26, 2025, a group of 22 plaintiffs from 16 states filed a negligence and product liability lawsuit against SIG Sauer, asserting "uncommanded firing" of P320 pistols.{{cite news |url=https://www.unionleader.com/news/courts/group-of-22-file-suit-over-sig-sauers-p320-pistol-company-offers-strong-pushback/article_328476f8-5d12-4361-8406-9831d1765858.html |title=Group of 22 file suit over SIG Sauer's P320 pistol; company offers strong pushback |first=Jonathan |last=Phelps |website=New Hampshire Union Leader |date=March 27, 2025 |accessdate=March 28, 2025}} The lead attorney for the plaintiffs claimed, "Sig knowingly designed and manufactured America’s most dangerously-defective firearm".{{cite press release |url=https://www.smbb.com/news-article/22-victims-of-sig-sauer-p320-across-16-states-file-new-lawsuits-in-federal-court-against-the-gunmaker-alleging-its-pistol-is-dangerously-defective/ |title=22 Victims of Sig Sauer P320 Across 16 States File New Lawsuits in Federal Court Against the Gunmaker Alleging its Pistol is Dangerously Defective |website=smbb.com |publisher=Saltz Mongeluzzi Bendesky P.C. |date=March 27, 2025 |accessdate=March 28, 2025}} The lawsuit was filed with the United States District Court for the District of New Hampshire.{{cite web |url=https://www.smbb.com/wp-content/uploads/2025/03/New-Filed-Complaint-v.-Sig-for-Mass-Action-4.pdf |title=Case 1:25-cv-00113 |via=smbb.com |date=March 26, 2025 |accessdate=March 28, 2025}}
Users
| class="wikitable"
|+ !Country !Organization/Notes !Model !Reference |
| {{flag|Australia}}
|P320 X-Carry Pro (designated F9) |{{cite web |last1=Bellman |first1=Cpl Luke |title=New ADF pistol unveiled |url=https://www.defence.gov.au/news-events/news/2025-04-04/new-adf-pistol-unveiled |website=Australian Defence Force |access-date=12 April 2025 |date=4 April 2025}}{{cite press release |title=ADF signs up for next generation of weapons |url=https://news.defence.gov.au/media/media-releases/adf-signs-next-generation-weapons |website=Defence News |publisher=Department of Defence |access-date=5 October 2022 |date=30 September 2022}} |
| {{flag|Bolivia}}
| rowspan="6" |P320 |
| rowspan="3" |{{flag|Brazil}}
|{{ubli|Civil Police of Ceará State |
| rowspan="2" |{{Cite web|date=23 October 2020|title=Governo do Ceará entrega quase 4 mil armas e amplia Irso em quatro vezes para garantir operações diárias da Polícia|url=https://www.pm.ce.gov.br/2020/10/23/governo-do-ceara-entrega-quase-4-mil-armas-e-amplia-irso-em-quatro-vezes-para-garantir-operacoes-diarias-da-policia/|access-date=14 July 2021|website=Polícia Militar|language=pt-BR}}{{Cite web|date=8 August 2018|title=Major foreign guns purchase by Brazilian LE market -|url=https://www.thefirearmblog.com/blog/2018/08/08/major-foreign-guns-purchase-by-brazilian-le-market/|access-date=14 July 2021|website=The Firearm Blog}}{{Cite web|date=9 January 2019|title=Polícia Civil do Ceará recebe mais mil novas pistolas de calibre 9 mm|url=https://www.policiacivil.ce.gov.br/2019/01/09/policia-civil-do-ceara-recebe-mais-mil-novas-pistolas-de-calibre-9-mm/|access-date=14 July 2021|website=Polícia Civil|language=pt-BR}}
|-
|Military Police of Ceará State
|-
|Military Police of Goiás State
|-
|{{flag|Canada}}
|{{Cite web |last=Defence |first=National |date=2022-10-06 |title=Canada awards contract for new Army pistols |url=https://www.canada.ca/en/department-national-defence/news/2022/10/canada-awards-contract-for-new-army-pistols.html |access-date=2022-10-07 |website=www.canada.ca}}{{Cite news |last=Pugliese |first=David |date=April 24, 2024 |title=Canadian military to destroy 11,000 Second World War-era pistols |url=https://ottawacitizen.com/news/national/defence-watch/canadian-military-to-destroy-11000-second-world-war-era-pistols |access-date=April 24, 2024 |work=Ottawa Citizen}}
|-
|{{Flag|Costa Rica}}
|-
| rowspan="2" |{{flag|Denmark}}
| rowspan="2" |P320 X-Carry
| rowspan="2" |{{Cite web|title=SIG Sauer P320 X-Carry to Become the Standard Service Pistol for the Danish Ministry of Defense|url=https://www.sigsauer.com/blog/sig-sauer-p320-x-carry-to-become-the-standard-service-pistol-for-the-danish-ministry-of-defense|access-date=2021-12-23|publisher=SIG Sauer}}{{Cite web |title=Pistol – Sig Sauer P320 X-Carry |url=https://www.forsvaret.dk/da/materiel2/pistol---sig-sauer-p320-x-carry/ |access-date=2022-08-25 |website=Forsvaret |language=da}}{{Cite web |title=Forsvaret har skiftet pistol efter 70 år: Se den nye Sig Sauer P320 |url=https://mmm.dk/forsvaret-har-skiftet-pistol-efter-70-aar-se-den-nye-sig-sauer-p320.12254.html |access-date=2022-08-25 |website=mmm.dk |language=da}}{{Cite web |last=Forsvaret |date=Jan 2019 |title=HRN 101-320 9 mm Pistol P320 og P365 |url=https://www.hjv.dk/oe/HVE223/Samarbejde/Skydeteam/Dokumenter/HRN%20101-320%209%20mm%20pistol%20%20P320%20og%20P365.pdf |access-date=5 August 2023 |website=HJV |archive-date=26 March 2023 |archive-url=https://web.archive.org/web/20230326233213/https://www.hjv.dk/oe/HVE223/Samarbejde/Skydeteam/Dokumenter/HRN%20101-320%209%20mm%20pistol%20%20P320%20og%20P365.pdf |url-status=dead }}{{Cite web |title=Politiet har underskrevet kontrakt om indkøb af ny pistol {{!}} Nyheder {{!}} Rigspolitiet |url=https://politi.dk/rigspolitiet/nyhedsliste/politiet-har-underskrevet-kontrakt-om-indkoeb-af-ny-pistol/2023/11/08 |access-date=2024-07-16 |website=politi.dk |language=da}}
|-
|-
| rowspan="2" |{{flag|France}}
|French National Railway Company Security
| rowspan="4" |P320
|-
|Wasquehal Municipal Police
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|{{flag|Indonesia}}
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|{{flag|Mexico}}
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|{{flag|Norway}}
|P320 XCarry
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|{{Flag|Spain}}
|Grupo Especial de Operaciones
| rowspan="3" |P320
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|{{Flag|Switzerland}}
|St. Gallen Police
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|{{Flag|Thailand}}
|{{cite news | url=https://www.malaysiakini.com/news/407024 | title=Thailand begins distributing thousands of pistols to cops | newspaper=Malaysiakini | date=30 December 2017}}{{cite web | url=https://www.nationthailand.com/in-focus/30335037 | title=New, modern handguns being handed out free to police | date=29 December 2017}}
|-
|{{flag|Ukraine}}
|P320 M18
|{{citation needed|reason=Do not cite Twitter, it is an unreliable source|date=December 2024}}
|-
|{{flag|United Kingdom}}
|P320
|{{citation needed|reason=Do not cite Twitter, it is an unreliable source|date=December 2024}}
|-
| rowspan="33" |{{flag|United States}}
|-
|United States Immigration and Customs Enforcement
|P320
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|National Park Service: U.S. Park Police and Law Enforcement Rangers
|P320 XCarry
|-
| rowspan="2" |P320
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|Hawaii Department of Public Safety
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|P320 XCarry 9mm
|{{citation needed|reason=Do not cite Twitter, it is an unreliable source|date=December 2024}}
|-
| rowspan="10" |P320
|-
|-
|-
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|Texas Department of Public Safety
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|-
|-
|-
|-
|-
|P320 .45ACP
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|Cambridge, Massachusetts Police Department
| rowspan="12" |P320
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|Pasco County Sheriff's Office
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|Ventura County, California Sheriff's Office
|-
|-
|Concord, New Hampshire Police Department
|{{Cite news |last=Brooks |first=David |date=January 31, 2017 |title=Concord police, U.S. Army buy N.H.-made handgun |work=Concord Monitor |url=https://www.concordmonitor.com/-7669485}}
|-
|Portsmouth, New Hampshire Police Department
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|Newington, New Hampshire Police Department
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|Lloyd Harbor, New York Police Department
|-
|{{Cite web|title=StackPath|url=https://www.officer.com/tactical/firearms/press-release/21089754/sig-sauer-inc-milwaukee-police-department-transitions-to-sig-sauer-p320-as-official-duty-pistol|access-date=2021-12-17|website=Officer|date=23 July 2019 }}
|-
|Sumter, South Carolina Police Department
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|Newark, Delaware Police Department
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|Miami Beach, Florida Police Department
|P320 XCarry 9mm
|-
|Bay Area Rapid Transit Police Department
| rowspan="3" |P320
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|Virginia Division of Capitol Police
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|Ames, Iowa Police Department
|}
References
{{reflist|30em}}
External links
{{Commons category|SIG Sauer P320}}
- {{official website|https://www.sigsauer.com/products/firearms/pistols/p320/}} P320 page
- [https://www.youtube.com/watch?v=5-0WvOusRuQ 101st AIRBORNE First to Fire the M17 M18 MHS Modular Handgun System (SIG P320)] via YouTube
- [https://www.youtube.com/watch?v=IyBfrf7iitA SIG P320] by Hickok45 via YouTube
{{SIG semi-automatic pistols}}
{{DEFAULTSORT:SIG Sauer P320}}
Category:.357 SIG semi-automatic pistols
Category:.40 S&W semi-automatic pistols
Category:.45 ACP semi-automatic pistols
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Category:Semi-automatic pistols of the United States