Heckler & Koch GMG

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).

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.

Users

 * 🇨🇦 Canada: 304 ordered. Designated as the C16 Close Area Suppression Weapon (CASW) and license-built by Rheinmetall Canada.
 * 🇫🇮 Finland Locally known as 40 KRKK 2005
 * 🇩🇪 Germany
 * 🇬🇷 Greece
 * 🇮🇪 Ireland
 * 🇱🇻 Latvia
 * 🇱🇹 Lithuania: Lithuanian Armed Forces.
 * 🇳🇱 Netherlands
 * 🇳🇿 New Zealand
 * 🇳🇴 Norway
 * 🇵🇱 Poland: Wojska Specjalne RP.
 * 🇵🇹 Portugal
 * 🇸🇮 Slovenia
 * 🇬🇧 United Kingdom: 44 purchased in 2006 for use in Afghanistan and Iraq. Designated as L134A1.
 * 🇺🇸 United States: Used by USSOCOM.