Military Wiki
HK GMW.jpg
A GMG of the German Army.
Type Automatic grenade launcher
Place of origin  Germany
Service history
Used by See Users
Wars War in Afghanistan (2001–present)
Production history
Designed 1992-1995
Manufacturer Heckler & Koch
Produced 1996-Present[citation needed]
Variants GMW
Weight 28.8 kg Gun, 10.7 kg tripod and 8 kg softmount.
Length 1090 mm
Barrel length 415 mm
Width 226 mm (without ammunition box)
Height 208 mm

Cartridge 40x53 mm
Action API Blowback
Rate of fire 350 rounds/min
Muzzle velocity 241 m/s
Effective range 1500 m
Maximum range 2200 m
Feed system 32-round disintegrating, closed-link belt
Sights Reflex sight and back-up leaf sight

The GMG (Granatmaschinengewehr or "grenade machine gun") is an automatic grenade launcher developed by Heckler & Koch for the German Army. It is also often referred to as GMW or GraMaWa (Granatmaschinenwaffe).[1]

Design details[]

It fires 40 mm grenades at a rate of about 350 rounds per minute. The GMG is belt-fed, and can be loaded from either side, making it easy to mount on most platforms. With a variety of day and night sights available the GMG can be used for most medium range infantry support situations.

The weapon itself is 1.09 m long, the barrel is 415 mm, and the ammunition box has dimensions of 470x160x250 mm. The gun operates on a recoil operated blow back basis. It weighs 29 kg; the tripod is an additional 11 kg.

Testing and operation[]

The HK GMG was tested in the Yuma desert in Arizona in 1997 in order to compete for future United States contracts.


See also[]


  3. "Too Late? Canada’s CASW for 40mm GMGs". Retrieved 2010-12-20. 
  6. 6.0 6.1 6.2 6.3 Jones, Richard D. Jane's Infantry Weapons 2009/2010. Jane's Information Group; 35 edition (January 27, 2009). ISBN 978-0-7106-2869-5.
  7. MOWAG CRV with 12.7mm HMG or 40mm Grenade Launcher
  10. "Special Forces - Wapens" (in Dutch). Netherlands Legermuseum: Collectie Informatie Centrum. Retrieved 2009-10-17. 
  11. "AGW, automatische granaatwerper 40 mm" (in Dutch). Netherlands Ministry of Defence. Retrieved 2010-02-24. 
  15. 15.0 15.1

External links[]

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