View source for Mk 19 grenade launcher

{{Infobox weapon
| name               = Mk 19
| image              = MK19-02.jpg
| image_size         = 300
| caption            = A Mk 19 40 mm grenade launcher mounted on an [[M3 tripod]]
| origin             = United States
| type               = [[Automatic grenade launcher]]
<!-- Type selection -->| is_ranged          = yes
| is_explosive       = yes
<!-- Service history -->| service            = 1968–present
| used_by            = See ''[[#Users|Users]]''
| wars               = {{Tree list}}
* [[Cold War]]
** [[Vietnam War]]
** [[Sino-Vietnamese War]]
** [[Cambodian–Vietnamese War]]
** [[Sino-Vietnamese conflicts (1979-1991)]]
** [[Third Indochina War]]
** [[Soviet–Afghan War]]
** [[Gulf War|Persian Gulf War]]<ref name="worldpolicy2000"/>
* [[War on Terror|Global War on Terrorism]]
** [[War in Afghanistan (2001–2021)|War in Afghanistan]]
** [[Iraq War]]
* [[2006 Lebanon War]]
* [[Kurdish–Turkish conflict (1978–present)]]<ref>{{cite web|url=https://www.youtube.com/watch?v=UEH5ihLou7M|title=kurds attack mountain top Turkish positions pt 2 Daring close quarters battle against regime|last=#Devon|date=12 August 2017|via=YouTube}}</ref><ref name="milliyet1">{{cite news |url=http://gundem.milliyet.com.tr/ozel-birlikler-kato-yu-pkk-ya-dar-etti/gundem/gundemdetay/10.09.2012/1594102/default.htm |title=Özel birlikler Kato'yu PKK'ya dar etti (Special troops deny the Kato [Mountain] to the PKK)|work=[[Milliyet]] |date=2012-09-11 |access-date=2012-11-24}}</ref>
* [[Mexican drug war]]
* [[2013 Lahad Datu standoff]]
* [[Syrian Civil War]]<ref>{{cite web|url=https://www.youtube.com/watch?v=cc2wN-Mlsfs|title=CHIẾN SỰ MOSUL. ĐỈNH ĐIỂM KHỐC LIỆT 02 2017|last=Kênh Tổng Hợp|date=27 February 2017|via=YouTube}}</ref>
* [[Yemeni Civil War (2015–present)|Yemeni Civil War]]
** [[Saudi Arabian-led intervention in Yemen]]
* [[Russo-Ukrainian War]]
* [[Gaza war]]
{{Tree list/end}}
<!-- Production history -->| designer           = [[Naval Ordnance Station Louisville]], [[George M. Chinn]]
| design_date        = 1966
| manufacturer       = Saco Defense Industries (now a division of [[General Dynamics|General Dynamics Ordnance and Tactical Systems]]), Combined Service Forces, [[MKEK]]<ref name="mkek.gov.tr">{{cite web|url=http://www.mkek.gov.tr/tr/Urunler.aspx?UretimYeriID=0&UrunID=301&AnaKategori=107&AltKategori=122&EnAltKategori=|title=MKEK - Makina ve Kimya Endüstrisi Kurumu|work=mkek.gov.tr|access-date=4 November 2016|archive-url=https://web.archive.org/web/20160306070932/http://www.mkek.gov.tr/tr/Urunler.aspx?UretimYeriID=0&UrunID=301&AnaKategori=107&AltKategori=122&EnAltKategori=|archive-date=6 March 2016|url-status=dead}}</ref>
| unit_cost          = $20,000<ref>{{cite web |url=http://www.strategypage.com/htmw/htweap/articles/20110330.aspx |title=Weapons: Mk19 Gets A Brain |publisher=Strategypage.com |date=2011-03-30 |access-date=2012-11-24 |archive-url=https://web.archive.org/web/20121012190944/http://www.strategypage.com/htmw/htweap/articles/20110330.aspx |archive-date=2012-10-12 |url-status=live }}</ref>
| production_date    = 1968–present
| number             = 
| variants           = Mk 19 Mod 0, Mk 19 Mod 1, Mk 19 Mod 2, Mk 19 Mod 3, Mk 19 Mod 4
<!-- General specifications -->| spec_label         = 
| weight             = {{convert|77.6|lb}} (empty, without accessories)
| length             = {{convert|43.1|in}}
| part_length        = {{convert|16.25|in}}
| width              = {{convert|240.4|mm|order=flip}}
| height             = {{convert|199|mm|order=flip}}
| diameter           = 
| crew               = <!-- Ranged weapon specifications -->
| cartridge          = [[40mm grenade|40×53 mm]]
| barrels            = 
| action             = [[API blowback]]
| rate               = {{ubl|325-375rpm (cyclic)| 40 rpm (sustained)|60 rpm (rapid)}}
| velocity           = {{convert|230-240|m/s|order=flip}} (average)
| range              = {{convert|1500|m|yd|abbr=on}}
| max_range          = {{convert|2212|m|yd|abbr=on}}
| feed               = 32- or 48-grenade belt
| sights             = Iron
}}

The '''Mk&nbsp;19 grenade launcher''' (pronounced [[Mark (designation)|Mark]] 19) is an American [[40mm grenade|40&nbsp;mm]] [[belt (firearm)|belt-fed]] [[automatic grenade launcher]] that was first developed during the [[Vietnam War]].<ref>{{cite web|url=https://armypubs.army.mil/doctrine/DR_pubs/dr_a/pdf/fm3_22x27.pdf|title=Field Manual 3-22.27 (FM 23.27) MK 19, 40-mm GRENADE MACHINE GUN, MOD 3|publisher=Department of the Army|date=November 2003|access-date=2015-06-05|archive-url=https://web.archive.org/web/20160304055631/http://armypubs.army.mil/doctrine/DR_pubs/dr_a/pdf/fm3_22x27.pdf|archive-date=2016-03-04|url-status=live}}</ref><ref name="Tucker2011">{{cite book|last=Tucker|first=Spencer C.|title=The Encyclopedia of the Vietnam War: A Political, Social, and Military History &#91;4 volumes&#93;: A Political, Social, and Military History|url=https://books.google.com/books?id=qh5lffww-KsC&pg=PA431|date=20 May 2011|publisher=ABC-CLIO|isbn=978-1-85109-961-0|page=431|access-date=3 November 2016|archive-url=https://web.archive.org/web/20160517145920/https://books.google.com/books?id=qh5lffww-KsC&pg=PA431|archive-date=17 May 2016|url-status=live}}</ref>

==Overview==
[[File:Richard Castanet fires Mark-19 in Quantico September 2000.png|thumb|left|A U.S. Marine fires a Mk&nbsp;19 40&nbsp;mm grenade launcher in Quantico, Virginia in September 2000.]]
The Mk&nbsp;19 is a belt-fed, blowback-operated, air-cooled, crew-served, fully-automatic weapon that is designed not to [[cooking off|cook off]]. It fires [[40 mm grenade|40&nbsp;mm grenades]] at a cyclic rate of 325 to 375 rounds per minute, giving a practical rate of fire of 60 rounds per minute (rapid) and 40 rounds per minute (sustained). The weapon operates on the [[Blowback (arms)|blowback]] principle, which uses the chamber pressure from each fired round to load and re-cock the weapon. The Mk&nbsp;19 can launch its grenade at a maximum distance of {{convert|2,212|m|yd|sp=us}}, though its effective range to a [[point target]] is about {{convert|1,500|m|yd|sp=us}}, since the large rear leaf sight is only graduated as far. The nearest safe distance to launch the grenade is 310 meters in training and 75 meters in combat. Though the Mk&nbsp;19 has a [[flash suppressor]], it serves only to save the eyesight of its operator, not concealing the weapon's position. For night operation, a [[picatinny rail]] quadrant sight can be added for thermal and [[night vision]] optics.

The Mk&nbsp;19A is a man-portable crew-served weapon that can fire from a tripod-mounted position or from a vehicle mount, with the latter being the preferred method, as the weapon alone weighs {{convert|77.6|lb|kg}}. The primary ammunition for it is the high-explosive dual-purpose M430 grenade. On impact, the grenade can kill anyone within a radius of {{convert|5|m|ft|spell=us}}, and wound them within a radius of {{convert|15|m|ft}}. It can also penetrate {{convert|2|in|cm|spell=us}} of [[rolled homogeneous armor]] with a direct hit (0-degree obliquity), which means it can penetrate most [[infantry fighting vehicle]]s and [[armoured personnel carrier|armored personnel carriers]]. It is especially effective when used against enemy [[infantry]] formations. The ammunition comes in cans that hold a 32- or 48-grenade belt weighing {{convert|42|and|60|lb|kg}}, respectively. Due to its low [[recoil]] and comparatively light weight, it has been adapted for use on many different platforms, including small attack boats, fast attack vehicles such as the [[Humvee]] (HMMWV), [[Amphibious Assault Vehicle|AAV]] and [[Stryker]], military jeeps, and a large variety of naval mounts.

The Mk&nbsp;19 automatic grenade launcher replaced the earlier [[Mk 18 Mod 0 grenade launcher|Mk 18]] hand-cranked multiple grenade launcher. The 40&nbsp;mm ammunition used (40×53&nbsp;mm) is not interchangeable with that used in the [[M203 grenade launcher|M203]] (40×46&nbsp;mm). The M203 ammunition develops a lower chamber pressure, and resultant lower muzzle velocity and range, compared to ammunition loaded for the Mk&nbsp;19. The Mk&nbsp;19 fires from an [[open bolt]]. The rounds are mechanically fed onto the bolt face with the pull of the charging handles. When the trigger is pressed, the bolt closes, and the firing pin is released. The recoil blows back the bolt, feeds a new round onto the bolt face, which pushes the expended casing off the bolt face.

Production of the Mk&nbsp;19 is managed by [[Saco Defense]] Industries, now a division of [[General Dynamics|General Dynamics Ordnance and Tactical Systems]] (GDOTS).

In November 2014, General Dynamics entered into an agreement with Advanced Material Engineering Pte Ltd, a subsidiary of [[Singapore Technologies Kinetics]], to manufacture 40&nbsp;mm high-velocity [[Airburst round|airburst]] ammunition for the U.S. military. The 40&nbsp;mm airburst grenade uses a programmable, time-based fuse that computes and programs the detonation time into it, which counts down once fired to zero to detonate at the intended target point.  The airburst ammunition is compatible with the Mk 19, which would give it greater effectiveness and lethality, particularly against concealed and [[defilade]] targets.

The Mk 19 is used as part of the Şahin [[counter unmanned air system]] (C-UAS) developed by [[Aselsan]], which entered service with the [[Turkish Armed Forces]] in July 2022 and uses Atom 40&nbsp;mm ammunition to detect and destroy mini and micro [[UAVs]] out to 700 meters.<ref>{{Cite web|last=|first=|date=19 July 2022|title=Turkey receives first Sahin counter-UAV system|url=https://www.janes.com/defence-news/news-detail/turkey-receives-first-sahin-counter-uav-system#:~:text=Aselsan%27s%20%C5%9Eahin%20counter%2Dunmanned%20aerial,)%2C%20tweeted%20on%2017%20July.|access-date=|website=[[Janes Information Services]]|archive-url=https://web.archive.org/web/20220724215907/https://www.janes.com/defence-news/news-detail/turkey-receives-first-sahin-counter-uav-system|archive-date=24 July 2022|url-status=live}}</ref><ref>{{cite web|url=https://www.aselsan.com.tr/SAHIN40mmTR_1426.pdf |title=ŞAHİN 40MM FIZIKSEL İMHA SISTEMI|website=Aselsan.com.tr|access-date=27 July 2022}}</ref>

==Variants==
[[File:Navy crewman fires Mk 19 Mod 0 grenade launcher against targets in the Nam Can forest.jpg|thumb|right|US Navy crewman fires a Mk 19 Mod 0 in July 1969]]
"Although the MK 19 is a recent entry into the Army’s inventory, development 
began in 1963. The first version was a hand-cranked, multiple grenade launcher 
called the MK 18. In 1966 the need for more firepower inspired the development of a 
self-powered 40-mm machine gun called the MK 19, MOD 0. This model was neither 
reliable nor safe enough for use as a military weapon system. Product improvements 
begun in 1971 resulted in the 1972 MOD 1, of which only six were produced. The 
MOD 1 performed effectively in Navy riverine patrol craft and broader applications 
for the MK 19 were found. In 1973 the Navy developed the MOD 2, which featured 
improved reliability, safety, and maintainability. In 1976 a complete redesign 
resulted in the MK 19, MOD 3, which the Army adopted in 1983. The Army now uses 
the MK 19 within the tactical environment for defense, retrograde, patrolling, rear 
area security, urban operations, and special operations."<ref>{{cite web|url=https://armypubs.army.mil/doctrine/DR_pubs/dr_a/pdf/fm3_22x27.pdf|title=Field Manual 3-22.27 (FM 23.27) MK 19, 40-mm GRENADE MACHINE GUN, MOD 3|publisher=Department of the Army|date=November 2003|access-date=2015-06-05|archive-url=https://web.archive.org/web/20160304055631/http://armypubs.army.mil/doctrine/DR_pubs/dr_a/pdf/fm3_22x27.pdf|archive-date=2016-03-04|url-status=live}}</ref>
- Department of the Army. November 2003 -

==Users==
[[File:Mk 19 grenade launcher Users.png|thumb|Map with Mk 19 grenade launcher users in blue]]
GDOTS has built nearly 35,000 Mk&nbsp;19 Mod 3 systems for roughly 30 customers since 1984.<ref>{{Cite web|url=http://www.asianmilitaryreview.com/upload/200711272151281.pdf|title=Heavy Hitters : Heavy Machine Guns and Grenade Launchers|author=Ian Kemp
|archive-url=https://web.archive.org/web/20110707174856/http://www.asianmilitaryreview.com/upload/200711272151281.pdf |accessdate=27 July 2022|archive-date=2011-07-07 }}</ref> Users of the Mk&nbsp;19 include:

<!--READ FIRST: This section is for cited entries only. Please do not add entries into this list without a citation from a reliable source. All entries without a citation will be removed. Thank you.-->
* {{Flag|Afghanistan}}: Unknown numbers were given to the [[Afghan army]] at an unknown period of time, captured and in use by the [[Taliban]].<ref>{{Cite web |last=Hilal Ghaznawi |date=2022-09-11 |title=Mk 19 Grenade Launcher in Taliban hands. |url=https://twitter.com/ghaznawi_hilal/status/1569048016988041217 |archive-url=https://web.archive.org/web/20220914213100/https://twitter.com/ghaznawi_hilal/status/1569048016988041217 |archive-date=2022-09-14 |access-date=2022-09-11 |website=Twitter}}</ref>
* {{flag|Argentina}}: [[Argentine Marines]].<ref>{{cite web|url=http://www.ara.mil.ar/pnav_infmarina.asp#02|title=Armada Argentina - official site|publisher=Estado Mayor General de la Armada|url-status=dead|archive-url=https://web.archive.org/web/20071012033447/http://www.ara.mil.ar/pnav_infmarina.asp#02|archive-date=2007-10-12}}</ref>
* {{flag|Australia}}<ref name="jones2009">Jones, Richard D. ''Jane's Infantry Weapons 2009/2010''. Jane's Information Group; 35 edition (January 27, 2009). {{ISBN|978-0-7106-2869-5}}.</ref>
* {{flag|Brazil}}: Used by the [[Brazilian Marine Corps]].<ref>{{cite web|date=2 April 2014|title=Corpo de Fuzileiros Navais adquire 23 novos CLAnfs - Noticias Infodefensa América|url=http://www.infodefensa.com/latam/2014/04/02/noticia-corpo-fuzileiros-navais-adquire-novos-clanfs.html|url-status=live|archive-url=https://web.archive.org/web/20161008194329/http://www.infodefensa.com/latam/2014/04/02/noticia-corpo-fuzileiros-navais-adquire-novos-clanfs.html|archive-date=8 October 2016|access-date=4 November 2016|work=infodefensa.com}}</ref>
* {{flag|Chile}}: Used by the [[Chilean Army]] and the [[Chilean Marine Corps]].<ref>{{cite web |url=https://www.infodefensa.com/texto-diario/mostrar/3110950/ejercito-chile-realiza-tiro-combate-sistema-antiblindaje-carl-gustaf-saab |title=The Chilean Army performs combat shooting with Saab's Carl Gustaf anti-armor system |last=García |first=Nicolás |date=20 July 2021 |website=Infodefensa.com |access-date=22 July 2022}}</ref><ref>{{cite web |url=https://www.infodefensa.com/texto-diario/mostrar/3077421/infanteria-marina-chile-exhibe-concon-modernos-fusiles-ametralladoras |title=The Chilean Marine Infantry exhibits its most modern rifles and machine guns in Concón |last=García |first=Nicolás |date=1 July 2017 |website=Infodefensa.com |access-date=22 July 2022}}</ref>
* {{flag|Egypt}}: Manufactured locally by Helwan.<ref name="armadaint2002">{{cite web |url=http://www.thefreelibrary.com/A+new+generation+of+AGLs%3A+within+only+a+few+decades+the+Automatic...-a086195789 |title=A new generation of AGLs |publisher=Thefreelibrary.com |date=2002-04-01 |access-date=2012-11-24 |archive-url=https://web.archive.org/web/20110430050116/http://www.thefreelibrary.com/A+new+generation+of+AGLs%3A+within+only+a+few+decades+the+Automatic...-a086195789 |archive-date=2011-04-30 |url-status=live }}</ref><ref>{{Cite web |url=http://www.sadefensejournal.com/wp/?p=4132 |title=IDEX ABU 2017 – Small Arms Defense Journal |access-date=2018-09-30 |archive-url=https://web.archive.org/web/20180123072923/http://www.sadefensejournal.com/wp/?p=4132 |archive-date=2018-01-23 |url-status=live }}</ref>
* {{flag|Georgia}}<ref>{{Cite web|url=https://civil.ge/archives/396867|title = Georgia Receives New Military Weaponry with U.S. Support|website=Civil.ge|date = 11 February 2021}}</ref>
* {{flag|Iran}}<ref>{{cite web|url=http://www.uskowioniran.com/2010/04/great-prophet-5-naval-maneuvers-5.html?m=1|title=Great Prophet 5 Maneuvers (5)|work=uskowioniran.com|access-date=4 November 2016|archive-url=https://web.archive.org/web/20170202002057/http://www.uskowioniran.com/2010/04/great-prophet-5-naval-maneuvers-5.html?m=1|archive-date=2 February 2017|url-status=live}}</ref>
* {{flag|Iraq}}: Used by Iraqi special forces on [[Humvee|Humvees]].<ref>{{cite web|title=ISOF Arms & Equipment Part 4 – Grenade Launchers & Anti-Armour Weapons|url=http://armamentresearch.com/isof-arms-equipment-part-4-grenade-launchers-anti-armour-weapons/|first=Miles|last=Vining|date=June 19, 2018|website=[[armamentresearch.com]]|access-date=July 31, 2018|archive-url=https://web.archive.org/web/20180728192622/http://armamentresearch.com/isof-arms-equipment-part-4-grenade-launchers-anti-armour-weapons/|archive-date=July 28, 2018|url-status=live}}</ref>
* {{flag|Israel}}:<ref name="jones2009"/> Adopted by the [[Israeli Defence Forces]] (under the name "Maklar", for ''mikla rimonim'' or "grenade machinegun"), to be fielded in infantry and mechanized units. The Mk 19 was formerly manufactured locally.<ref name="armadaint2002"/>
* {{JPN}}: MK19 mounted on [[Assault Amphibious Vehicle|AAV7]] amphibious vehicle used by [[Amphibious Rapid Deployment Brigade]]<ref>{{cite web|url=https://rikuzi-chousadan.com/soubihin/soukousya/aav7.html|title=水陸両用車AAV7|lang=ja|access-date=Oct 23, 2022}}</ref>
* {{flag|Kosovo}}:<ref name="jones2009"/> [[Kosovo Security Forces]].<ref name="armadaint2002"/>
* {{flag|Lebanon}}<ref>{{cite web|url=http://www.defenselink.mil/news/newsarticle.aspx?id=53846|title=Gates, Lebanese Defense Minister Explore Expanding Bilateral Relationship|last=Miles|first=Donna|date=April 8, 2009|publisher=American Forces Press Service - DefenseLink News|access-date=2009-04-08|archive-url=https://web.archive.org/web/20090411030408/http://www.defenselink.mil/news/newsarticle.aspx?id=53846|archive-date=April 11, 2009|url-status=live}}</ref>
* {{flag|Malaysia}}<ref name="jones2009"/>
* {{flag|Mexico}}:<ref name="jones2009"/>
* {{flag|Moldova}}<ref>{{cite web|url=https://tvrmoldova.md/article/ffbfad4a25b1889d/sua-au-donat-armatei-nationale-a-r-moldova-un-nou-lot-de-echipamente-militare-in-valoare-de-trei-milioane-de-dolari-in-urma-unui-acord-intre-cele-doua-tari-semnat-in-anul-2019.html|title=SUA au donat Armatei Naționale a R. Moldova un nou lot de echipamente militare, în valoare de trei milioane de dolari, în urma unui acord între cele două țări, semnat în anul 2019|author=Cristina Mirca|language=ro|publisher=[[TVR Moldova]]|date=4 August 2023}}</ref><ref>{{cite web|url=https://news.ungheni.org/video-exercitii-demonstrative-cu-trageri-de-lupta-la-jcet-2023/|title=Exerciții demonstrative cu trageri de luptă la JCET-2023|language=ro|website=news.ungheni.org|date=2 November 2023}}</ref>
* {{flag|Morocco}}: [[Moroccan Army]].<ref>{{cite web|title=EDA - Morocco|url=http://www.dsca.mil/sites/default/files/eda_public_report_2016-10-27.xlsx|url-status=live|archive-url=https://web.archive.org/web/20170521023349/http://www.dsca.mil/sites/default/files/eda_public_report_2016-10-27.xlsx|archive-date=2017-05-21|access-date=2017-05-28|publisher=Defense Security Cooperation Agency}}</ref>
* {{flag|Poland}}<ref>{{cite web |url=http://mon.gov.pl/pl/galeria/2374/ |title=..:: Ministerstwo Obrony Narodowej - serwis internetowy :: Galeria :: |access-date=2014-03-25 |url-status=dead |archive-url=https://web.archive.org/web/20101111002310/http://www.mon.gov.pl/pl/galeria/2374 |archive-date=2010-11-11 }}</ref>
* {{PRT}}: Used by the [[Portuguese Army]].<ref>{{Cite web|title=NOVOS LANÇA GRANADAS AUTOMÁTICOS CHEGAM AO EXÉRCITO {{!}} Operacional|url=http://www.operacional.pt/novos-lanca-granadas-automaticos-chegam-ao-exercito/|access-date=2020-07-10|language=pt-PT}}</ref>
* {{flag|Saudi Arabia}}<ref>{{cite book|url=https://books.google.com/books?id=6bQYsnx7AH0C&q=M249+saudi&pg=PT869|title=U.S. Army Weapons Systems 2013-2014|last=Army|date=24 January 2012|publisher=Skyhorse Publishing, Inc.|access-date=17 March 2018|via=Google Books|archive-url=https://web.archive.org/web/20180318055104/https://books.google.com/books?id=6bQYsnx7AH0C&pg=PT869&lpg=PT869&dq=M249+saudi&source=bl&ots=vWYS5eB9Vy&sig=gJ9uDcSxNr5y0QD2hxmahI5RBXA&hl=en&sa=X&ved=0ahUKEwiJkZLTz_zYAhWGWxQKHU6sATIQ6AEIVTAJ#v=onepage&q=M249+saudi&f=false|archive-date=18 March 2018|url-status=live|isbn=9781620879238}}</ref>
* {{flag|Spain}}<ref name="jones2009"/>
* {{flag|Sweden}}: Designated ''Grsp 92''.<ref name="jones2009"/> Used by [[Kustjägarna]] and [[Amfibiebataljonen]]<ref>{{cite web |author=Janq Designs |url=http://www.specialoperations.com/Foreign/Sweden/default.html |title=Special Operations.Com |publisher=Special Operations.Com |access-date=2012-11-24 |url-status=dead |archive-url=https://web.archive.org/web/20120531143635/http://www.specialoperations.com/Foreign/Sweden/default.html |archive-date=2012-05-31 }}</ref> and also by the [[31st Ranger Battalion|31st Airborne Battalion]]<ref>{{cite web |url=http://www.soldf.com/grsp.html |publisher=Soldf.com |title=Granatspruta 40mm Grsp |first=Henrik |last=Svensk |access-date=2012-11-24 |language=sv |archive-url=https://web.archive.org/web/20120624055440/http://www.soldf.com/grsp.html |archive-date=2012-06-24 |url-status=live }}</ref>
* {{flag|Taiwan}}<ref name="worldpolicy2000">{{cite web |url=http://www.worldpolicy.org/projects/arms/reports/smallarms.htm |title=Report: Profiling the Small Arms Industry - World Policy Institute - Research Project |date=November 2000 |publisher=World Policy Institute |access-date=2010-07-15 |archive-url=https://web.archive.org/web/20171011093831/http://www.worldpolicy.org/projects/arms/reports/smallarms.htm |archive-date=2017-10-11 |url-status=dead }}</ref>
* {{flag|Thailand}}:<ref name="UsaPublications2007">{{cite book|author1=Ibp|author2=USA|title=Thailand Army Weapon Systems Handbook|url=https://books.google.com/books?id=ddcRqnVDL9wC&pg=PA150|access-date=8 August 2013|date=1 May 2007|publisher=Int'l Business Publications|isbn=978-1-4330-6196-7|page=150}}</ref>
* {{flag|Turkey}}: Produced under licence by [[MKEK]].<ref name="mkek.gov.tr"/> Used by [[Turkish Land Forces]].<ref>{{cite web |url=http://www.anahaberyorum.com/gundem/bu-silah-katoyu-pkkya-dar-etti-h8892.html |archive-url=https://web.archive.org/web/20120912091640/http://www.anahaberyorum.com/gundem/bu-silah-katoyu-pkkya-dar-etti-h8892.html |archive-date=2012-09-12|title=Bu Silah Kato'yu PKK'ya Dar Etti |work=anahaberyorum.com |access-date=5 November 2016}}</ref>
* {{flag|Ukraine}}<ref>{{Cite web|title=США передали Україні 40-мм автоматичні гранатомети Mk 19|url=https://mil.in.ua/uk/news/ssha-peredaly-ukrayini-40-mm-avtomatychni-granatomety-mk-19/|website=Мілітарний|accessdate=2022-02-03|language=uk}}</ref>
* {{flag|United States}}:<ref name="jones2009"/> Currently in widespread use throughout the [[United States Armed Forces|U.S. Armed Forces]].
* {{flag|Vietnam}}:<ref name="jones2009"/> Used in the Sino-Vietnamese War. 

<gallery widths="200px" heights="140px">
US Navy 030317-D-3645W-057 U.S. Navy reservists assigned to Naval Construction Force Support Unit Three and Naval Mobile Construction Battalion Twenty Four (NMCB-24) fire the MK-19 40mm grenade launcher during MIL-EX 2003.jpg|U.S. Navy sailors fire a Mk&nbsp;19 40&nbsp;mm grenade launcher during a training exercise in March 2003.
Granatnik Mk. 19 Wojsko Polskie.jpg|Mk 19 in use by [[Polish Land Forces]]
Mexican troops operating at a random checkpoint 2009.jpg|A Mexican Army [[Chevrolet Silverado]] equipped with a Mk&nbsp;19 at a military checkpoint in March 2009
</gallery>

== Civilian Availability ==
A single transferable MK19 MOD 0 is on the American [[National Firearms Act|NFA]] registry, as it qualifies as both a [[destructive device]] (as per the NFA) and as a machine gun (under the [[Hughes Amendment]]) and was sold for over $500,000 in 2024.

== See also ==
* [[Mk 47 Striker|Mk 47 Mod 0 Striker]], U.S. military successor in limited service
* [[XM174 grenade launcher]], predecessor used by the U.S. military during the Vietnam War
* [[Mark (designation)#United States Navy|U.S. Navy equipment designations]]
* [[List of API blowback firearms]]
* [[List of grenade launchers]]
* [[Comparison of automatic grenade launchers]]

=== Weapons of comparable role, performance and era ===
* {{lwc|AGS-17}}
* {{lwc|AGS-30}}
* {{lwc|AGS-40 Balkan|AGS-40}}
* {{lwc|Heckler & Koch GMG}}
* {{lwc|QLZ-87 grenade launcher|QLZ-87}}
* {{lwc|QLZ-04|QLZ-04}}
* {{lwc|Daewoo Precision Industries K4|K4 grenade launcher}}
* {{lwc|Howa Type 96}}
* {{ill|UAG-40|UK|УАГ-40}} – (Ukraine)

==References==
{{Reflist|30em}}

==External links==
{{Commons and category|Mk 19|Mk 19 grenade launcher}}
* [https://armypubs.army.mil/doctrine/DR_pubs/dr_a/pdf/fm3_22x27.pdf MK 19, 40-mm GRENADE MACHINE GUN, MOD 3 - Department of the Army, 2003]
* {{usurped|1=[https://web.archive.org/web/20080409021726/http://www.gdatp.com/products/Gun_Systems/MK19/MK19.htm General Dynamics]}}
* [http://www.fas.org/man/dod-101/sys/land/m430.htm M430 40mm Cartridge High-explosive dual purpose (HEDP) round specs]

{{API blowback firearms}}
{{ModernUSInfWeaponsNav}}
{{USAF Weapons}}

{{DEFAULTSORT:Mk 19 Grenade Launcher}}
[[Category:Automatic grenade launchers]]
[[Category:40×53mm grenade launchers]]
[[Category:Grenade launchers of the United States]]
[[Category:40 mm artillery]]
[[Category:United States Marine Corps equipment]]
[[Category:API blowback firearms]]
[[Category:Weapons and ammunition introduced in 1968]]