CN08 120 mm gun

{{Infobox weapon

| name = Hyundai WIA CN08

| image = CN08 120 mm gun.jpg

| image_size = 300

| alt =

| caption = Gun barrel of the CN08

| type = Smoothbore tank gun

| origin = South Korea

| is_ranged = yes

| is_artillery = yes

| is_UK =

| service = 2014–present

| used_by = See Operators

| wars =

| designer = Agency for Defense Development
Hyundai WIA

| design_date = 2003–2008

| manufacturer = Hyundai WIA

| unit_cost =

| production_date = 2008–present

| number =

| variants = MKE 120 mm gun

| spec_label =

| mass = Gun barrel: {{convert|1324|kg|lb|sp=us}}
Gun mount: {{convert|3100|kg|lb|sp=us}}

| length = Gun barrel: {{convert|6.600|m|ft|sp=us}}
Gun mount: {{convert|7.118|m|ft|sp=us}}

| width =

| height =

| diameter =

| crew =

| passengers =

| cartridge =

| cartridge_weight =

| caliber = 120×570mm NATO

| barrels =

| action = Automatic opening and closing mechanism

| rate = 10 rds/min

| velocity = {{convert|1640|to|1760|m/s|ft/s|abbr=on}} with K279 APFSDS-T{{cite web|url=https://dl.nanet.go.kr/file/fileDownload.do?linkSystemId=NADL&controlNo=NONB1201818281|title=화기별·탄종별 사격장 안전기준 정립 연구|publisher=Republic of Korea Army Headquarters|date=25 May 2018|archiveurl=https://web.archive.org/web/20211014062442/https://dl.nanet.go.kr/file/fileDownload.do?linkSystemId=NADL&controlNo=NONB1201818281|archivedate=14 October 2021|accessdate=14 October 2021|author=Security Management Institute}} p. 118
{{convert|1678|to|1800|m/s|ft/s|abbr=on}} with K279 Improved APFSDS-T{{cite web|url=https://www.koreascience.or.kr/article/JAKO201713234785644.pdf|title=Pressure Analysis and Conceptual Design for Indoor Ballistic Test Range by Numerical Methods|publisher=Korea Science|date=9 December 2016|archiveurl=https://web.archive.org/web/20211014010317/https://www.koreascience.or.kr/article/JAKO201713234785644.pdf|archivedate=14 October 2021|accessdate=14 October 2021|author=Agency for Defense Development}} p. 2

| range = APFSDS: {{convert|3000|m|yd|sp=us}}{{cite web|url=http://www.hyundai-wia.com/lib/common/download.asp?file=%2Fupload%2Fdownload%2FDefense_Land.pdf|title=Gun & Artillery System|publisher=Hyundai WIA|date=|archiveurl=https://web.archive.org/web/20211014145605/http://www.hyundai-wia.com/lib/common/download.asp?file=%2Fupload%2Fdownload%2FDefense_Land.pdf|archivedate=14 October 2021|accessdate=14 October 2021|author=}} p. 3
KSTAM-I: {{convert|5000|m|yd|sp=us}}{{cite web|url=https://www.koreascience.or.kr/article/JAKO200626055835151.pdf|title=A Trade Study of the Top Attack Smart Tank Ammunition|publisher=Journal of the Korea Society of Systems Engineering|date=31 January 2006|archiveurl=https://web.archive.org/web/20211017052608/https://www.koreascience.or.kr/article/JAKO200626055835151.pdf|archivedate=17 October 2021|accessdate=17 October 2021|author=Agency for Defense Development}}
KSTAM-II: {{convert|8000|m|yd|sp=us}}

| max_range = APFSDS: {{convert|4000|m|yd|sp=us}}{{cite web|url=https://www.youtube.com/watch?v=oUbSffeuKX0|title=[K-weapon source] K-2 Black Panther #1 - Republic of Korea MND|publisher=Ministry of National Defense of the Republic of Korea|date=25 December 2019|archiveurl=https://web.archive.org/web/20230411010209/https://www.youtube.com/watch?v=oUbSffeuKX0|archivedate=11 April 2023|accessdate=11 April 2023|author1=}}

| feed = Automatic feeding endless belt magazine

| sights =

| breech = Vertically sliding

| recoil = Eccentric hydro-pneumatic

| carriage =

| elevation =

| traverse =

}}

The CN08 (Cannon 08) is a 120 mm 55-caliber smoothbore tank gun produced by Hyundai WIA. It is incorrectly known as the licensed production of the Rheinmetall Rh-120 L/55, but it was indigenously developed by the Agency for Defense Development and WIA (now Hyundai WIA) from 2003 to 2008 for the XK2 development project started in 1995. The development was completed after the field test ended in September 2008.{{cite web|url=https://cdn2.me-qr.com/pdf/0e2991ea-5ea6-45f5-81da-869961d16556.pdf|title=K2 Main Gun Assembly|publisher=Hyundai WIA|date=October 2023|archiveurl=https://web.archive.org/web/20241010041927/https://cdn2.me-qr.com/pdf/0e2991ea-5ea6-45f5-81da-869961d16556.pdf|archivedate=10 October 2024|accessdate=10 October 2024|author1=}}{{cite web|url=https://file.mt.co.kr/newfiledown.php?filepath=2016%2F01&filen=I_Machinery_20160105_SK_1823257457_102350.pdf|title=방위산업, 저성장 시대의 대안|publisher=SK Securities|date=5 January 2016|archiveurl=https://web.archive.org/web/20211028082233/https://file.mt.co.kr/newfiledown.php?filepath=2016%2F01&filen=I_Machinery_20160105_SK_1823257457_102350.pdf|archivedate=28 October 2021|accessdate=28 October 2021|author=Lee Ji-hoon}} p. 14

Design

The CN08 is the main armament of the K2 Black Panther, and the gun barrel is applied with internal chrome plating technology for the large-caliber gun. The gun barrel can endure a high explosive force as a result of the increased stiffness and wear resistance provided by this internal chromium surface.{{cite web|url=http://koreascience.or.kr/article/JAKO200503018552216.pdf|title=Effect of CCC Composition on Burning Characteristic for 120mm Kinetic Energy Ammunition|publisher=Korea Science|date=30 December 2005|archiveurl=https://web.archive.org/web/20211019095419/http://koreascience.or.kr/article/JAKO200503018552216.pdf|archivedate=19 October 2021|accessdate=19 October 2021|author=Agency for Defense Development}}{{cite web|url=https://www.itfind.or.kr/Report02/201112/KIAT-1350.pdf|title=시뮬레이션 기법을 이용한 장축 실린더 내경도금의 전류분포 기술지원|publisher=Ministry of Knowledge Economy|date=1 July 2008|archiveurl=https://web.archive.org/web/20211014045309/https://www.itfind.or.kr/Report02/201112/KIAT-1350.pdf|archivedate=14 October 2021|accessdate=14 October 2021|author=Cotec}}{{cite web|url=https://www.koreascience.or.kr/article/JAKO201535258425757.pdf|title=Study On Effect of Fe Density on Electrolyte Exfoliation of Chromium Plating Layer|publisher=Korea Science|date=7 October 2015|archiveurl=https://web.archive.org/web/20211014043107/https://www.koreascience.or.kr/article/JAKO201535258425757.pdf|archivedate=14 October 2021|accessdate=14 October 2021|author=Defense Agency for Technology and Quality}} The main components, including the breech ring, breech block and thermal sleeve, are simplified and designed lightly, the gun barrel weighs {{convert|1324|kg|lb|sp=us}} and the gun mount weighs {{convert|3100|kg|lb|sp=us}}.

The gun mount is composed of an eccentric hydro-pneumatic recoil system with oil reservoir for the gun barrel and is complemented by a bustle-type autoloader powered by a switched reluctance motor (SRM) combined with a breech controller that automatically opens and closes the gun tube, and it can fire up to 10 rounds a minute.

The maximum permissible pressure of the gun barrel is 744 MPa (108,000 psi), and when the tank gun fires an improved K279 APFSDS, the maximum proof pressure is {{convert|690|MPa|psi|0|abbr=on}}, and the muzzle velocity is {{convert|1800|m/s|ft/s|abbr=on}}. It depends on the type of ammunition, but the effective firing range of the tank gun is {{convert|8000|m|yd|sp=us}}.{{cite web|url=http://journal.kadis.or.kr/UPFILE/PUBLICATION_FILE/J2016048/160104.pdf|title=Systems Analysis on Smart Ammunition for 120mm Tank Gun|publisher=Korea Association of Defense Industry Studies|date=June 2009|archiveurl=https://web.archive.org/web/20220330053548/http://journal.kadis.or.kr/UPFILE/PUBLICATION_FILE/J2016048/160104.pdf|archivedate=30 March 2022|accessdate=30 March 2022|author=Poongsan Technology Institute}}

= Dynamic muzzle reference system =

The main armament has a dynamic muzzle reference system (DMRS) consisting of a laser reflector, a laser emitter and a vertical sensor unit (VSU). A laser reflector assembly attached to the top of the thermal sleeve is provided to be adapted to a dynamic muzzle reference system to electro-optically measure the accurate position of the muzzle. The mechanical gyroscope type vertical sensor unit, which calculates the lead angle and superelevation in real time to correct the misalignment of the aim, allows the tank to more accurately hit its intended target even when it is maneuvering on irregular terrain.{{cite web|url=https://www.koreascience.or.kr/article/JAKO201613752757718.pdf|title=A Study on Measurement of Gun's Attitude of K2 MBT Using Inertial Navigation System and Its Effects on the Hit Probability|publisher=Korea Science|date=5 April 2016|archiveurl=https://web.archive.org/web/20210707055320/https://www.koreascience.or.kr/article/JAKO201613752757718.pdf|archivedate=7 July 2021|accessdate=7 July 2021|author=Hyundai Rotem}}

= Ammunition =

File:K279 APFSDS-T and K277 HEAT-MP-T of Poongsan Corporation.jpg

CN08's 120 mm round is produced in Poongsan Corporation, a South Korean ammunition manufacturer, and can fire 120×570 mm NATO tank ammunition.

class="wikitable"

|+APFSDS Rounds{{cite web|url=https://pdf4pro.com/cdn/ammunition-amp-explosives-poongsan-b8ba4.pdf|title=Ammunition and Explosives|publisher=|date=|archiveurl=https://web.archive.org/web/20211017044902/https://pdf4pro.com/cdn/ammunition-amp-explosives-poongsan-b8ba4.pdf|archivedate=17 October 2021|accessdate=17 October 2021|author=Poongsan Corporation}}{{cite web|url=https://www.madex.co.kr:453/board/download.asp?filename1=%ED%92%8D%EC%82%B0_%EA%B5%AD%EB%AC%B8.pdf&filename=20210426124003_4.pdf&mode=company|title=풍산탄약|publisher=MADEX|date=2020|archiveurl=https://web.archive.org/web/20211014072708/https://www.madex.co.kr:453/board/download.asp?filename1=%ED%92%8D%EC%82%B0_%EA%B5%AD%EB%AC%B8.pdf&filename=20210426124003_4.pdf&mode=company|archivedate=14 October 2021|accessdate=14 October 2021|author=Poongsan Corporation}}{{cite web|url=https://www.koreascience.or.kr/article/JAKO202013261023155.pdf|title=Study on the Improving Penetration Performance of Tungsten Heavy Alloy Penetrator by Heat Treatment|publisher=Korea Science|date=29 February 2020|archiveurl=https://web.archive.org/web/20211017060118/https://www.koreascience.or.kr/article/JAKO202013261023155.pdf|archivedate=17 October 2021|accessdate=17 October 2021|author=Defense Agency for Technology and Quality}}{{cite web|url=http://www.koreascience.or.kr/article/JAKO200412910503137.pdf|title=Manufacturing of Tungsten Heavy Alloy Composites for Kinetic Energy Penetrator|publisher=Korea Science|date=1 October 2004|archiveurl=https://web.archive.org/web/20211017090545/http://www.koreascience.or.kr/article/JAKO200412910503137.pdf|archivedate=17 October 2021|accessdate=17 October 2021|author=Agency for Defense Development}}{{cite web|url=https://koreascience.or.kr/article/CFKO201232164221307.pdf|title=Study on the Temperature Independent Property of the Surface Coated Double Base Propellant|publisher=The Korean Society of Propulsion Engineers|date=17 May 2012|archiveurl=https://web.archive.org/web/20211017063200/https://koreascience.or.kr/article/CFKO201232164221307.pdf|archivedate=17 October 2021|accessdate=17 October 2021|author=Sun-Kil Kwon}}{{cite web|url=https://s1.pdfdrive.com/dl2.php?id=201257281&h=b8ef3e0680b27a0be31800ec8d06c781&u=cache&ext=pdf&n=105%C3%AB%C2%AF%C2%B8%C3%AB%C2%A6%C2%AC%20%C3%AB%C2%82%C2%A0%C3%AA%C2%B0%C2%9C%C3%AC%C2%95%C2%88%C3%AC%C2%A0%C2%95%C3%AC%C2%B2%C2%A0%C3%AA%C2%B0%C2%91%C3%AD%C2%83%C2%84%C3%AC%C2%9A%C2%A9%20%C3%AC%C2%98%C2%A8%C3%AB%C2%8F%C2%84%C3%AB%C2%91%C2%94%C3%AA%C2%B0%C2%90%C3%AC%C2%BD%C2%94%C3%AD%C2%8C%C2%85%C3%AC%C2%B6%C2%94%C3%AC%C2%A7%C2%84%C3%AC%C2%A0%C2%9C%20%C3%AC%C2%97%C2%B0%C3%AA%C2%B5%C2%AC%C3%A2%C2%85%C2%A0|title=Study on the Temperature Independent Property of the Surface Coated Propellant for 105mm Armor Piercing Fin Stabilized Discarding Sabot I|publisher=The Korean Society of Propulsion Engineers|date=December 2014|archiveurl=https://web.archive.org/web/20220329191517/https://s1.pdfdrive.com/dl2.php?id=201257281&h=b8ef3e0680b27a0be31800ec8d06c781&u=cache&ext=pdf&n=105%C3%AB%C2%AF%C2%B8%C3%AB%C2%A6%C2%AC%20%C3%AB%C2%82%C2%A0%C3%AA%C2%B0%C2%9C%C3%AC%C2%95%C2%88%C3%AC%C2%A0%C2%95%C3%AC%C2%B2%C2%A0%C3%AA%C2%B0%C2%91%C3%AD%C2%83%C2%84%C3%AC%C2%9A%C2%A9%20%C3%AC%C2%98%C2%A8%C3%AB%C2%8F%C2%84%C3%AB%C2%91%C2%94%C3%AA%C2%B0%C2%90%C3%AC%C2%BD%C2%94%C3%AD%C2%8C%C2%85%C3%AC%C2%B6%C2%94%C3%AC%C2%A7%C2%84%C3%AC%C2%A0%C2%9C%20%C3%AC%C2%97%C2%B0%C3%AA%C2%B5%C2%AC%C3%A2%C2%85%C2%A0|archivedate=29 March 2022|accessdate=29 March 2022|author=Tae Soo Kwon}}{{cite web|url=https://s1.pdfdrive.com/dl2.php?id=201257288&h=7fd64900de1f86055dd9ac6a17be3fa2&u=cache&ext=pdf&n=105%EB%AF%B8%EB%A6%AC+%EB%82%A0%EA%B0%9C%EC%95%88%EC%A0%95%EC%B2%A0%EA%B0%91%ED%83%84%EC%9A%A9+%EC%98%A8%EB%8F%84%EB%91%94%EA%B0%90%EC%BD%94%ED%8C%85%EC%B6%94%EC%A7%84%EC%A0%9C+%EC%97%B0%EA%B5%AC%E2%85%A1|title=Study on the Temperature Independent Property of the Surface Coated Propellant for 105mm Armor Piercing Fin Stabilized Discarding Sabot II|publisher=The Korean Society of Propulsion Engineers|date=May 2015|archiveurl=https://web.archive.org/web/20220329194736/https://s1.pdfdrive.com/dl2.php?id=201257288&h=7fd64900de1f86055dd9ac6a17be3fa2&u=cache&ext=pdf&n=105%EB%AF%B8%EB%A6%AC+%EB%82%A0%EA%B0%9C%EC%95%88%EC%A0%95%EC%B2%A0%EA%B0%91%ED%83%84%EC%9A%A9+%EC%98%A8%EB%8F%84%EB%91%94%EA%B0%90%EC%BD%94%ED%8C%85%EC%B6%94%EC%A7%84%EC%A0%9C+%EC%97%B0%EA%B5%AC%E2%85%A1|archivedate=29 March 2022|accessdate=29 March 2022|author=Tae Soo Kwon}}

!Ammunition

!Compatible tank gun

!Type

!Penetrator

!Chamber pressure

!Muzzle velocity

!Ammunition weight

!Ammunition length

!Sub-projectile weight

!Sub-projectile length

!Penetrator weight with fin

!Penetrator length with fin

!Propellant type & weight

!RHA penetration

!Notes

K276

|CN03, CN08, M256

|APFSDS-T

|Tungsten composite

|586 MPa

|1700 m/s (L/44)

|19.7 kg

|973 mm

|7.35 kg

|703.6 mm

|600 mm

|K683 (Triple-base)

|>600 mm (LoS at 60° obliquity) at 2000 m

|Penetrators are manufactured by Cyclic Heat-Treatment and a Double-Cycle Sintering process.

K279 (XK279)

|CN08{{notetag|K279 is a round compatible with CN03 and M256 as well as CN08, but the high chamber pressure of K279 quickly reduces the life of the barrel, so the manufacturer Poongsan does not recommend using it for CN03 and M256 barrels.}}

|APFSDS-T

|Tungsten composite

|1760 m/s (L/55)

|21.3 kg

|998 mm

|8.27 kg

|761.6 mm

|5 kg

|8.6 kg of L15190 (SCDB)

|>700 mm (LoS at 60° obliquity) at 2000 m

|The penetrator is made of W-Ni-Fe-Mo Alloy.

K279 Improved

|CN08

|APFSDS-T

|Tungsten composite

|690 MPa

|1800 m/s{{efn-lr|When the round reaches the tip of the barrel, the muzzle velocity is 1,794.7 m/s.}} (L/55)

|21.3 kg

|998 mm

|8.27 kg

|761.6 mm

|5 kg

|8.6 kg of 19-hole cylinder-type (SCDB)

|New DNDA-57 energetic plasticizer for stronger SCDB propellant.

class="wikitable"

|+HEAT Rounds

!Ammunition

!Compatible tank gun

!Type

!Filler

!Chamber pressure

!Muzzle velocity

!Ammunition weight

!Ammunition length

!Sub-projectile weight

!Sub-projectile length

!Filler weight

!Propellant type & weight

!RHA penetration

!Notes

K277

|CN03, CN08, M256

|HEAT-MP-T

|Comp-B

|448 MPa

|1130 m/s (L/44)

|24.5 kg

|989 mm

|14.31 kg

|713.32 mm

|K682 (Triple-base)

|600 mm

K280 (XK280)

|CN03, CN08, M256

|HEAT-MP-T

|Comp-B

|1400 m/s (L/55)

|23 kg

|998 mm

|11.38 kg

|792.75 mm

|2.1 kg

|K684 (Double-base)

class="wikitable"

|+Guided munition{{cite web|url=http://journal.kadis.or.kr/UPFILE/PUBLICATION_FILE/J2016048/160104.pdf|title=Systems Analysis on Smart Ammunition for 120mm Tank Gun|publisher=Korea Association of Defense Industry Studies|date=June 2009|archiveurl=https://web.archive.org/web/20220330053548/http://journal.kadis.or.kr/UPFILE/PUBLICATION_FILE/J2016048/160104.pdf|archivedate=30 March 2022|accessdate=30 March 2022|author=Kim, Hyeong Gyu}}

!Ammunition

!Compatible tank gun

!Type

!Filler

!Chamber pressure

!Muzzle velocity

!Ammunition weight

!Ammunition length

!Sub-projectile weight

!Sub-projectile length

!Minimum range

!Maximum range

!RHA penetration

!Notes

KSTAM-I

|CN08

|Terminal guidance

|TSCW

|750 m/s

|2500 m

|5000 m

KSTAM-II

|CN08

|Fire-and-forget

|EFP

|21.5 kg

|985 mm

|9.03 kg

|2000 m

|8000 m

Export

= Turkey =

On July 29 2008, Hyundai Rotem and Otokar signed a contract for technology transfer and design assistance for the Altay Tank Development Project. This contract includes technology transfer and design assistance for systems, armor package, and 120 mm guns required for Altay tank development.{{cite web|url=https://www.hyundai-rotem.co.kr/PRCenter/News_View.asp?type=%EC%96%B8%EB%A1%A0%EB%B3%B4%EB%8F%84&idx=1415&ref=|title=터키 전차개발 기술협력 계약 체결|publisher=Hyundai Rotem|date=31 July 2008|archiveurl=https://web.archive.org/web/20211010183718/https://www.hyundai-rotem.co.kr/PRCenter/News_View.asp?type=%EC%96%B8%EB%A1%A0%EB%B3%B4%EB%8F%84&idx=1415&ref=|archivedate=10 October 2021|accessdate=10 October 2021|author=Hyundai Rotem}}{{cite web|url=https://www.yna.co.kr/view/AKR20091011025000043|title='흑표' 기술수출료 2014년까지 사용유예|publisher=Yonhap News|date=11 October 2009|archiveurl=https://web.archive.org/web/20211010185746/https://www.yna.co.kr/view/AKR20091011025000043|archivedate=10 October 2021|accessdate=10 October 2021|author=Kim Gwigeun}}{{cite web|url=https://www.hankyung.com/politics/article/2014101905821|title=[방산업계 울리는 ADD] 터키 수출 K-2전차 기술료 다 챙겨...'700억 돈잔치' 벌이겠다는 ADD|publisher=Korea Economic Daily|date=20 October 2014|archiveurl=https://web.archive.org/web/20211010202210/https://www.hankyung.com/politics/article/2014101905821|archivedate=10 October 2021|accessdate=10 October 2021|author=Choi Seunguk}}{{cite web|url=https://www.armyrecognition.com/turkey_turkish_heavy_armoured_tanks_uk/altay_turkish_main_battle_tank_vehicle_technical_data_sheet_specifications_description_pictures_uk.html|title=Altay MBT Main Battle Tank|publisher=Army Recognition|date=1 October 2021|archiveurl=https://web.archive.org/web/20211024194638/https://www.armyrecognition.com/turkey_turkish_heavy_armoured_tanks_uk/altay_turkish_main_battle_tank_vehicle_technical_data_sheet_specifications_description_pictures_uk.html|archivedate=24 October 2021|accessdate=24 October 2021|author=Army Recognition}}

= Poland =

On July 27, 2022, Polish Armaments Group (PGZ) and Hyundai Rotem signed a framework agreement to supply 180 K2s and 820 K2PLs. The agreement will include rapid arms supply and extensive technology transfer from South Korea, and 180 K2s will be produced in South Korea and delivered to Poland from 2022, and 820 K2PLs will be produced in Poland under license from 2026.{{cite web|url=http://dziennikzbrojny.pl/aktualnosci/news%2C1%2C11672%2Caktualnosci-z-polski%2Ckoreanskie-zamowienia-agencja-uzbrojenia-ujawnia-szczegoly|title=Koreańskie zamówienia – Agencja Uzbrojenia ujawnia szczegóły|publisher=Dziennik Zbrojny|date=24 July 2022|archiveurl=https://web.archive.org/web/20220731052845/http://dziennikzbrojny.pl/aktualnosci/news,1,11672,aktualnosci-z-polski,koreanskie-zamowienia-agencja-uzbrojenia-ujawnia-szczegoly|archivedate=31 July 2022|accessdate=31 July 2022|author=Tomasz Dmitruk}}{{cite web|url=https://twitter.com/MON_GOV_PL/status/1552203913276841984?s=20&t=HzYWMkZkBQ2uxH37x2hrcg|title=Czołgi K2|publisher=Polish Ministry of Defence official Twitter|date=27 July 2022|archiveurl=https://archive.today/20220729013832/https://twitter.com/MON_GOV_PL/status/1552203913276841984?s=20&t=HzYWMkZkBQ2uxH37x2hrcg|archivedate=29 July 2022|accessdate=29 July 2022|author=Ministerstwo Obrony Narodowej}}{{cite web|url=https://www.yna.co.kr/view/AKR20220727090752504|title=폴란드 "한국에 K2 1천대·FA-50 3개편대·K-9 600문 주문"(종합2보)|publisher=Yonhap News Agency|date=27 July 2022|archiveurl=https://web.archive.org/web/20220729001831/https://www.yna.co.kr/view/AKR20220727090752504|archivedate=29 July 2022|accessdate=29 July 2022|author=Kim Yeonsuk}}{{cite web|url=https://cdn.defence24.pl/2022/07/29/b8a347b7-2dc4-4ddb-82dc-b49174860aa2.pdf|title=Poland Procures Korean MBTs, Aircraft, and Howitzers|publisher=Defence24|date=28 July 2022|archiveurl=https://web.archive.org/web/20220729165048/https://cdn.defence24.pl/2022/07/29/b8a347b7-2dc4-4ddb-82dc-b49174860aa2.pdf|archivedate=29 July 2022|accessdate=29 July 2022|author=Maciej Szopa}}{{cite web|url=https://www.wojsko-polskie.pl/articles/tym-zyjemy-v/pierwsze-czolgi-k2-przekazane-zolnierzom-wojska-polskiego/|title=Pierwsze czołgi K2 przekazane żołnierzom Wojska Polskiego|publisher=Wojsko Polskie|date=9 December 2022|archiveurl=https://web.archive.org/web/20221210025147/https://www.wojsko-polskie.pl/articles/tym-zyjemy-v/pierwsze-czolgi-k2-przekazane-zolnierzom-wojska-polskiego/|archivedate=10 December 2022|accessdate=10 December 2022|author=}}{{cite web|url=https://zbiam.pl/pierwsze-czolgi-k2-przekazane-polskim-zolnierzom/|title=Pierwsze czołgi K2 przekazane polskim żołnierzom|publisher=zbiam|date=9 December 2022|archiveurl=https://web.archive.org/web/20221210032915/https://zbiam.pl/pierwsze-czolgi-k2-przekazane-polskim-zolnierzom/|archivedate=10 December 2022|accessdate=10 December 2022|author=Bartłomiej Kucharski}}

Variants

MKE 120 mm gun: Turkish 120 mm 55 caliber smoothbore gun modified based on CN08 for the Altay tank. The design of the tank gun is the same as CN08, but there are two differences: unlike CN08, thermal sleeve is equipped with Static Muzzle Reference System (SMRS), and Altay's turret does not have breech opening motor and automatic feeding magazine system for autoloader mechanism, so ammunition can only be loaded manually by tank crew and can fire up to 6 rounds a minute.

Operators

File:CN08 operators.svg

= Current operators =

{{POL}} – Polish Land Forces
{{KOR}} – Republic of Korea Army

= Weapons of comparable role, performance and era =

L11A5 120 mm rifled gun: British rifled equivalent, developed by Royal Armament Research and Development Establishment (RARDE) in 1957.
2A46 125 mm gun: Russian 125-mm equivalent, developed by Spetstekhnika Design Bureau in 1960s.
Rheinmetall 120 mm gun: German equivalent, developed by Rheinmetall in 1974.
CN120-25 120 mm gun: French equivalent, developed by Établissement d'Études et de Fabrication d'Armements de Bourges (EFAB) in 1979.
EXP-28M1 120 mm rifled gun: Experimental British weapon of the late 1970s/early 1980s. Was to have equipped the MBT-80.
CN120-26 120 mm gun: French equivalent, developed by EFAB in 1980s.
IMI 120 mm gun: Israeli equivalent, developed by Israeli Military Industries in 1988.
OTO Breda 120 mm gun: Italian equivalent, developed by OTO Melara in 1988.
L30A1 120 mm rifled gun: British rifled equivalent, developed by ROF Nottingham in 1989.
JSW 120 mm gun: Japanese equivalent, developed by Japan Steel Works in 2008.
2A82-1M 125 mm gun: New Russian 125-mm equivalent, developed by Uralvagonzavod in 2014.