Infantry weapons / Grenade launchers / GMG

GMG

General Facts

  • TYPE
    Automatic grenade launcher

  • ORIGIN
    Germany

  • NICKNAMES
    GMG / Granatmaschinengewehr, grenade machine gun
    C16 Close Area Suppression Weapon (Canadian service)
    L134A1 (UK service)
    40 KrKK 2005 (Finnish service)

  • DESIGNED
    1992 - 1995

  • DESIGNER
    Heckler & Koch

  • PRODUCTION
    1995 - present

  • PRODUCERS
    Canada - Rheinmetall Canada
    Germany - Heckler & Koch
    Greece - EBO

  • QUANTITY
    Unknown

  • UNIT COST
    Unknown

  • CHARACTERISTICS
    Good firepower
    Accurate
    High reliability
    Expensive

Introduction

The GMG is a modern automatic grenade launcher of German origin. It was developed by Heckler & Koch as a private venture in the early 1990's. GMG stands for Granatmaschinengewehr, which is German for Grenade Machine Gun.

Design

The GMG uses blowback operation with advanced primer ignition, a method used in the original US Mk 19 but omitted in later models. It is a belt fed weapon that feeds from left to right. Iron sights are fitted, although usually a reflex or night vision sight is attached. The GMG can be used on a tripod but is usually vehicle mounted.

Firepower

The GMG fires 40x53mm high velocity grenades from belts, mostly of 32 rounds. The GMG is a select-fire weapon with a cyclic rate of fire of 350 rpm. The maximum range is 2.2 km, but the effective range is 1.5 km. The standard HEDP grenades have a lethal radius of 5 m, wounding radius of 15 m and will pierce the armor of most light armored vehicles.

Users

The first user for the GMG was the German army, which uses it on a variety of vehicles such as the Fennek and Dingo. The GMG has been sold to a variety of European nations and the US Special Forces.

Variants

GMG

The GMG is an automatic grenade launcher that fires 40x53mm high velocity rounds. The standard GMG model is the most common version. For infantry use on a tripod a lighter model was developed. This is known as the GMG light or GMW, which stands for Granatmaschinenwaffe. The GMW lacks a muzzle attachment, soft mount ability and ammunition box bracket.

  • Specifications:
  • GMG
TypeAutomatic grenade launcher
Caliber40x53mm NATO
MagazineBelt fed, 32 rounds
OperationBlowback with advanced primer ignition
Fire selector0-1-F
Rate of fire350 rpm
Barrel length415 mm
Rifling?
Muzzle velocity241 m/s
Stock-
Length1.18 m
Width140 mm, 226 mm max
Height208 mm
Weight28.8 kg (gun only), 10.7 kg (tripod)
SightsIron sights, 100 to 1.500 m gradations, reflex or night vision sight
Remarks-

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