Mk 19 grenade launcher

Mk 19 grenade launcher
Type	Automatic grenade launcher
Land of Origin	United States
Specifications
Length	43.1 inches (1,090 mm)
Barrel length	16.25 inches (413 mm)
Weight	72.5 pounds (32.9 kg)
Width	13.4 inches (340 mm)
Cartridge	40x53mm
Action	Advanced Primer Ignition / Blowback
Rate of Fire	325-375 rpm cyclic 60 rmp rapid 40 rpm sustained
Effective Range	1,500 yards (1,400 m)
Max. Range	2,212 yards (2,023 m)
Feed	belt fed
Service History
Used by	See #Users
Wars	Vietnam War, 2006 Lebanon War, Gulf War, Second Iraq, Afghan War
Production History
Designer	Naval Ordnance Center - Louisville
Design Date	1960s
Manufacturer	Saco Defense Industries (now a division of General Dynamics Armament and Technical Products), Combined Service Forces
Produced	1968 – present
No. Built	nearly 35,000
Variants	Mk 19 Mod 0, Mk 19 Mod 1, Mk 19 Mod 2, Mk 19 Mod 3

The Mk 19 Grenade Launcher is a 40mm belt-fed automatic grenade launcher or grenade machine gun that entered U.S. military service during the Cold War, first seeing action during the Vietnam War and remaining in service today.

Overview

The Mk 19 is a belt fed, blowback operated, air cooled, crew served, fully automatic weapon that is designed not to cook off. It fires 40 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 principle, which uses the chamber pressure from each fired round to load and re-cock the weapon. The Mk 19 is able to launch its grenade at a maximum distance of 2,212 meters, though its effective range for a point target is about 1,500 meters, since the large rear leaf sight is only graduated to 1,500 meters. The nearest safe distance to launch the grenade is 310 meters in training and 75 meters in combat. Though the Mk 19 has a flash suppressor, it serves only to save the eyesight of its operator; it does not conceal the weapon's position. For night operation, an AN/TVS-5 night vision sight can be fitted.

Mk 19 40 mm grenade launcher during MIL-EX 2003.

The Mk 19 is a man-portable crew-served weapon that can fire from a tripod mounted position or from a vehicle mount (this being the preferred method as the weapon alone weighs 72.5 lbs). The primary ammunition for Mk 19 is the high explosive dual-purpose M430 grenade. Upon impact, the grenade can kill anyone within the radius of five meters, and wound them within the radius of 15 meters. It can also punch through two inches of rolled homogeneous armor with a direct hit (0 Degree Obliquity), which means it can penetrate most infantry fighting vehicles and armored personnel carriers. It is especially effective when used against enemy infantry formations. The ammunition comes in 32 or 48 round cans weighing 42 and 60 lb, 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), AAV and Stryker, military jeeps and a large variety of naval mounts.

The Mk 19 automatic grenade launcher replaced the earlier Mk 18 hand-cranked multiple grenade launcher. The 40 mm ammunition used (40x53mm) is not interchangeable with that used in the M203 (40x46mm). 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 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.

The Mk 19 is made by Saco Defense Industries (now a division of General Dynamics Armament and Technical Products).

Users

GDATP has built nearly 35,000 Mk 19 Mod 3 systems for roughly 30 customers since 1984. Users of the Mk 19 include:

A U.S. Marine firing a turret-mounted Mk 19 on a humvee.

• Australia
• Egypt: Manufactured locally.
• Greece
• Israel: 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.
• Lebanon
• Malaysia
• Mexico: Used extensively by the army in the Mexican drug war.
• South Korea: Daewoo K4. Manufactured locally by S&T Daewoo.
• Spain
• Sweden: Designated Grsp 92. Used by Kustjägarna.
• Taiwan
• United States: Used by American forces in Somalia (1993) and in Iraq (1991) by special forces operating behind enemy lines and Military Police. Currently in widespread use in the U.S. Military.

Resources

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The following images are also available for reference:

• 

  Major assemblies of the Mk-19

See also

• Mk 47 Mod 0 Striker
• HK GMG, similar weapon used by the German Army
• SB LAG 40, similar weapon used by Spain
• ST Kinetics CIS 40 AGL
• Vektor Y3 AGL, similar weapon of South African origin
• AGS-17 ( Automatic Grenade Launcher - 30mm grenade)
• AGS-30 ( Automatic Grenade Launcher - 30mm grenade)
• SAG-30

External links

• General Dynamics
• MK19 MOD 3 40mm Machine Gun - Global Security
• 40mm grenades - Global Security
• MK19 Review
• M430 40mm Cartridge High-explosive dual purpose (HEDP) round specs
• Martin Electronics, Inc. Home Page - 40 mm Ammunition