Heckler & Koch GMG

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
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 firing range 1500 m
Maximum firing 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 340 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 is 1.09 m long and has a 415 mm rifled barrel; 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


  1. "Heckler & Koch :: Home". Retrieved 23 November 2014.
  2. "Archived copy". Archived from the original on 8 July 2012. Retrieved 19 December 2010.
  3. "Too Late? Canada's CASW for 40mm GMGs". Retrieved 20 December 2010.
  4. http://tietokannat.mil.fi/paiste07/log.php@language=fi_FI&page_id=25.html Archived 21 August 2009 at the Wayback Machine.
  5. "40 KRKK 2005, Heckler & Koch GMG - Finnish Army". Archived from the original on 23 March 2012. Retrieved 23 November 2014.
  6. 1 2 3 4 Jones, Richard D. Jane's Infantry Weapons 2009/2010. Jane's Information Group; 35 edition (27 January 2009). ISBN 978-0-7106-2869-5.
  7. Thompson, Leroy (1 March 2013). "Ireland's Army Rangers (page 1)". Tactical-Life. Retrieved 19 November 2016.
  8. http://www.mod.gov.lv/upload/nbsfakti.anglu.gala.pdf%5Bpermanent+dead+link%5D
  9. "Lietuvos kariuomenė :: Ginkluotė ir karinė technika » Granatsvaidžiai ir prieštankiniai ginklai » Automatinis granatsvaidis H&K GMG 40 mm". Retrieved 23 November 2014.
  10. Dan, Alex (9 February 2016). "PASKAL Malaysian Special Forces Weapons". Military Factory (Small Arms). Retrieved 1 May 2016.
  11. "Special Forces - Wapens" (in Dutch). Netherlands Legermuseum: Collectie Informatie Centrum. Archived from the original on 27 February 2009. Retrieved 17 October 2009.
  12. "AGW, automatische granaatwerper 40 mm" (in Dutch). Netherlands Ministry of Defence. Archived from the original on 1 October 2011. Retrieved 24 February 2010.
  13. http://www.army.mil.nz/downloads/pdf/army-news/armynews428.pdf
  14. "Forsvarsdepartementet får 10 millioner kroner i bot". Aftenposten. Retrieved 23 November 2014.
  15. "40 mm GMG Automatic Grenade Launcher". Retrieved 23 November 2014.
  16. 1 2 "Archived copy" (PDF). Archived from the original (PDF) on 7 July 2011. Retrieved 12 April 2010.
  17. "Советы по ремонту". Retrieved 23 November 2014.
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