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Small arms1990s–present
Automatic grenade launcher
Heckler & Koch GMG is a automatic grenade launcher originating in Germany. It was built by Heckler & Koch. Reported operators include Belgium, Canada, Finland, Germany, Greece, Ireland, Latvia, Lithuania, Malaysia, Netherlands, New Zealand, Norway, Poland, Portugal, Slovenia, Sri Lanka, Ukraine, United Kingdom, United States.
GermanyTechnical data
Automatic grenade launcher
Germany
1990s–present
See Users
War in Afghanistan (2001–2021) Russian invasion of Ukraine
1992–1995
Heckler & Koch
1996–present
GMW
28.8 kg Gun, 10.7 kg tripod and 8 kg softmount.
1,090 mm
415 mm
226 mm (without ammunition box)
208 mm
40x53 mm
API Blowback
340 rounds/min
241 m/s
1,500 m
2,200 m
32-round disintegrating, closed-link belt
Reflex sight and back-up leaf sight
Belgium
Canada
Finland
Germany
Greece
Ireland
Latvia
Lithuania
Malaysia
Netherlands
New Zealand
Norway
Poland
Portugal
Slovenia
Sri Lanka
Ukraine
United Kingdom
United States
Rate of Fire 340 Rounds/min
Munition: DM138
Reference text from Wikipedia contributors, used under CC BY-SA 4.0.
True scale
Sourced dimensions beside a 1.75 m human reference.
Points represent sourced observations, including revisions. Revisions on the same effective date are not separate inventory events. Ranges appear in the table and are not plotted as exact points.
| Observation / report period | Value | Source | Claim state |
|---|---|---|---|
| 28 Sept 2026 | 1.09 m | Wikipedia contributors | superseded |
Heckler & Koch GMG equipment records. Variants, orders and quantities are shown as reported in each inventory source; coverage is incomplete.
Belgium
Canada
Finland
France Germany
GreeceReported count for HK GMG. Service scope: Hellenic Army; does not replace a national total. 1 distinct count cell(s) from the same source list; shared rowspan cells counted once. Retired, wholly reserve and on-order rows are excluded; the reported count retains any explicitly mixed stock scope in the quoted row. Count column(s): quantity: 633. Origin: Germany Greece. The listed variants/roles are the scope, not an immediately deployable count. The components do not establish one inventory census date; the stored date is the retrieved source snapshot.
Ireland
Latvia
Lithuania
Malaysia
Netherlands
New Zealand
Norway
Poland
Portugal
Slovenia
Sri Lanka
Ukraine
United Kingdom
United StatesBelgium, Canada, Finland, Germany, Greece, Ireland, Latvia, Lithuania, Malaysia, Netherlands, New Zealand, Norway, Poland, Portugal, Slovenia, Sri Lanka, Ukraine, United Kingdom, United States
Equipment reference ↗