Bushmaster Arm Pistol

{{About|one individual handgun model|the firearms manufacturer|Bushmaster Firearms International}}

{{Use dmy dates|date=June 2020}}

{{Infobox weapon

| name = Bushmaster Arm Pistol

| image = Gwinn Arms Bushmaster pistol.jpg

| image_size = 300

| caption = The Bushmaster Arm Pistol at the National Firearms Museum under a Colt M1911 handgun.

| origin = United States

| type = Bullpup pistol
Personal defense weapon
Assault rifle carbine

| is_ranged = Yes

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| manufacturer = Gwinn Firearms Company, Bushmaster Firearms International

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| production_date = 1972–1990

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| weight = {{convert|4.25|lbs|kg|abbr=on}}[https://web.archive.org/web/20201112035205/http://www.thefirearmblog.com/blog/2014/03/31/bushmaster-arm-pistol/ Bushmaster Arm Pistol] Nicholas C., The Firearm Blog, March 31, 2014

| length = {{convert|20|in|mm|abbr=on}}

| part_length = {{convert|11.5|in|mm|abbr=on}}

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| cartridge = 5.56×45mm NATO

| caliber = 5.56mm

| action = Rotating bolt, Long-stroke Gas piston

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| feed = 30-round detachable STANAG Magazine

| sights = Iron sights

}}

The Bushmaster Arm Pistol was a 5.56×45mm NATO firearm, categorizeable as either a long pistol (under the American legal definition of a pistol) or compact carbine rifle, produced by the Gwinn Firearms Company, and later Bushmaster Firearms Inc. The firearm was a new design, having a rotating bolt combined with a long stroke gas piston system similar to the AK-47 rifle.{{cite book |last=Peterson |first=Phillip |title=Gun Digest Buyer's Guide to Tactical Rifles |url=https://books.google.com/books?id=jp-4n02a0QQC&pg=PA25 |date=2010 |publisher=Gun Digest Books |location=Iola, Wisconsin |isbn=978-1-4402-1793-7 |page=25}}{{cite book |last=Zimba |first=Jeff |title=The Evolution of the Black Rifle: 20 Years of Upgrades, Options, and Accessories |url=https://books.google.com/books?id=bCFjCgAAQBAJ&pg=PT38 |date=2014 |publisher=Prepper Press |isbn=978-0-692-31726-6 |pages=38–39}}

Some AR-15 parts were used in its construction and it used STANAG type magazines.

Production ceased in 1988 for the pistol variant and 1991 for the rifle following Bushmaster's acquisition by the Quality Products Company the previous year;{{cite book |author=John Walter |title=Rifles of the World |url=https://books.google.com/books?id=Eq2Dnj4sDZIC&pg=PA76 |year=2006 |publisher=Krause Publications |isbn=978-0-89689-241-5 |page=76 }}{{Dead link|date=November 2023 |bot=InternetArchiveBot |fix-attempted=yes }} the company now known as Bushmaster is primarily known for making the more common AR-15 type rifles.{{cite book |last=Peterson |first=Phillip |title=Gun Digest Buyer's Guide to Assault Weapons |url=https://books.google.com/books?id=JKwciFmCBXsC&pg=PT4 |date=30 September 2008 |publisher=F+W Media |isbn=978-1-4402-2444-7 |pages=4–5}}