| Mk 19 | |
|---|---|
 A Mk 19 40 mm grenade launcher mounted on anM3 tripod | |
| Type | Automatic grenade launcher |
| Place of origin | United States |
| Service history | |
| In service | 1968–present |
| Used by | SeeUsers |
| Wars | |
| Production history | |
| Designer | Naval Ordnance Station Louisville, George M. Chinn |
| Designed | 1966 |
| Manufacturer | Saco Defense Industries (now a division ofGeneral Dynamics Ordnance and Tactical Systems), Combined Service Forces,MKEK[5] |
| Unit cost | $20,000[6] |
| Produced | 1968–present |
| Variants | Mk 19 Mod 0, Mk 19 Mod 1, Mk 19 Mod 2, Mk 19 Mod 3, Mk 19 Mod 4 |
| Specifications | |
| Mass | 77.6 pounds (35.2 kg) (empty, without accessories) |
| Length | 43.1 inches (1,090 mm) |
| Barrel length | 16.25 inches (413 mm) |
| Width | 9.46 inches (240.4 mm) |
| Height | 7.8 inches (199 mm) |
| Cartridge | 40×53 mm |
| Action | API blowback |
| Rate of fire |
|
| Muzzle velocity | 750–790 feet per second (230–240 m/s) (average) |
| Effective firing range | 1,500 m (1,600 yd) |
| Maximum firing range | 2,212 m (2,419 yd) |
| Feed system | 32- or 48-grenade belt |
| Sights | Iron |
TheMk 19 grenade launcher (pronouncedMark 19) is an American40 mmbelt-fedautomatic grenade launcher that was first developed during theVietnam War.[7][8]
The Mk 19 is a belt-fed, blowback-operated, air-cooled, crew-served, fully-automatic weapon that is designed not tocook off. It fires40 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 theblowback principle, which uses the chamber pressure from each fired round to load and re-cock the weapon. The Mk 19 can launch its grenade at a maximum distance of 2,212 meters (2,419 yd), though its effective range to apoint target is about 1,500 meters (1,600 yd), 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 19 has aflash suppressor, it serves only to save the eyesight of its operator, not concealing the weapon's position. For night operation, apicatinny rail quadrant sight can be added for thermal andnight vision optics.
The Mk 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 77.6 pounds (35.2 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 five metres (16 ft), and wound them within a radius of 15 metres (49 ft). It can also penetrate two inches (5.1 cm) ofrolled homogeneous armor with a direct hit (0-degree obliquity), which means it can penetrate mostinfantry fighting vehicles andarmored personnel carriers. It is especially effective when used against enemyinfantry formations. The ammunition comes in cans that hold a 32- or 48-grenade belt weighing 42 and 60 pounds (19 and 27 kg), respectively. Due to its lowrecoil and comparatively light weight, it has been adapted for use on many different platforms, including small attack boats, fast attack vehicles such as theHumvee (HMMWV),AAV andStryker, military jeeps, and a large variety of naval mounts.
The Mk 19 automatic grenade launcher replaced the earlierMk 18 hand-cranked multiple grenade launcher. The 40 mm ammunition used (40×53 mm) is not interchangeable with that used in theM203 (40×46 mm). The M203 ammunition develops a lower chamber pressure, and resultant lower muzzle velocity and range, compared to ammunition loaded for the Mk 19. The Mk 19 fires from anopen 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 19 is managed bySaco Defense Industries (now a division ofGeneral Dynamics Ordnance and Tactical Systems).
In November 2014, General Dynamics entered into an agreement with Advanced Material Engineering Pte Ltd, a subsidiary ofSingapore Technologies Kinetics, to manufacture 40 mm high-velocityairburst ammunition for the U.S. military. The 40 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 anddefilade targets.
The Mk 19 is used as part of the Şahincounter unmanned air system (C-UAS) developed byAselsan, which entered service with theTurkish Armed Forces in July 2022 and uses Atom 40 mm ammunition to detect and destroy mini and microUAVs out to 700 meters.[9][10]
"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."[11]- Department of the Army. November 2003 -
GDOTS has built nearly 35,000 Mk 19 Mod 3 systems for roughly 30 customers since 1984.[12] Users of the Mk 19 include:
Afghanistan: Unknown numbers were given to theAfghan army at an unknown period of time, captured and in use by theTaliban.[13]
Argentina:Argentine Marines.[14]
Australia[15]
Brazil: Used by theBrazilian Marine Corps.[16]
Chile: Used by theChilean Army and theChilean Marine Corps.[17][18]
Egypt: Manufactured locally by Helwan.[19][20]
Georgia[21]
Iran[22]
Iraq: Used by Iraqi special forces onHumvees.[23]
Israel:[15] Adopted by theIsraeli Defence Forces (under the name "Maklar", formikla rimonim or "grenade machinegun"), to be fielded in infantry and mechanized units. The Mk 19 was formerly manufactured locally.[19]
Japan: MK19 mounted onAAV7 amphibious vehicle used byAmphibious Rapid Deployment Brigade[24]
Kosovo:[15]Kosovo Security Forces.[19]
Lebanon[25]
Malaysia[15]
Mexico:[15]
Moldova[26][27]
Morocco:Moroccan Army.[28]
Poland[29]
Portugal: Used by thePortuguese Army.[30]
Saudi Arabia[31]
Spain[15]
Sweden: DesignatedGrsp 92.[15] Used byKustjägarna andAmfibiebataljonen[32] and also by the31st Airborne Battalion[33]
Taiwan[1]
Thailand:[34]
Turkey: Produced under licence byMKEK.[5] Used byTurkish Land Forces.[35]
Ukraine[36]
United States:[15] Currently in widespread use throughout theU.S. Armed Forces.
Vietnam:[15] Used in the Sino-Vietnamese War._fire_the_MK-19_40mm_grenade_launcher_during_MIL-EX_2003.jpg)
