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At a glance
Measured figures
Length
Single source1,072 mm (42.2 in)[source]
LMT Modular Ambidextrous Rifle System · Length · "Maximum"
Single sourceConfiguration
| Specification | Daewoo Precision Industries K4 | LMT Modular Ambidextrous Rifle System |
|---|---|---|
| Type | Automatic grenade launcher[source] | Assault rifle Battle rifle[source]LMT Modular Ambidextrous Rifle System · Type |
| Place of origin | South Korea[source] | United States[source]LMT Modular Ambidextrous Rifle System · Place of origin |
| In service | 1993–present[source] | 2015 - present[source]LMT Modular Ambidextrous Rifle System · In service |
914 mm (36.0 in) ("Maximum")[source]LMT Modular Ambidextrous Rifle System · Length
Barrel length
Single source412 mm (16.22 in)[source]
L129A2 exact named variant; not a sibling record · Barrel length
Single sourceStgw 25 exact named variant; not a sibling record · Barrel length
Single sourceStgw 25K exact named variant; not a sibling record · Barrel length
Single source18 in (457 mm)[source]L129A2 exact named variant; not a sibling record
16 in (406 mm)[source]Stgw 25 exact named variant; not a sibling record
12 in (305 mm)[source]Stgw 25K exact named variant; not a sibling record
Rate of fire
Single source325–378 rounds/min[source]
K212
Single sourceKM383
Single source240.8 m/s (790 ft/s) (K212) 242.3 m/s (795 ft/s) (KM383)[source]
Bars compare reported quantities only. A larger figure does not make a system better; configurations and test conditions differ.
| Used by | See Users[source] | — |
|---|
| Wars | War in Afghanistan Iraq War Libyan Civil War[source] | — |
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| Designer | Agency for Defense Development Daewoo Precision Industries[source] | Lewis Machine & Tool Company[source]LMT Modular Ambidextrous Rifle System · Designer |
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| Designed | 1985–1991[source] | — |
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| Manufacturer | Daewoo Precision Industries (1981–1999) Daewoo Telecom (1999–2002) Daewoo Precision (2002–2006) S&T Daewoo (2006–2012) S&T Motiv (2012–2021) SNT Motiv (2021–present)[source] | Lewis Machine & Tool Company[source]LMT Modular Ambidextrous Rifle System · Manufacturer |
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| Produced | 1993–present[source] | — |
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| Cartridge | 40×53mm grenade[source] | 5.56×45mm NATO 7.62×51mm NATO 6.5mm Creedmoor[source]LMT Modular Ambidextrous Rifle System · Cartridge The MARS-L (light) assault rifle variants are chambered for the 5.56×45mm NATO intermediate cartridge , and the MARS-H (heavy) battle rifle and designated marksman rifle variants for the 7.62×51mm NATO , 6.5 mm Creedmoor or similar fully powered cartridges .[source]Design · explicit MARS-L/MARS-H cartridge scope MARS-H based designated marksman variant, chambered in 6.5 mm Creedmoor .[source]L129A2 · explicit MARS-L/MARS-H cartridge scope Swiss MARS-H-based designated marksman rifle chambered in 7.62×51mm NATO.[source]7.62mm Zf Stgw 20 · explicit MARS-L/MARS-H cartridge scope LMT's MRGG-A is a member of its Modular Ambidextrous Rifle System-Heavy (MARS-H) family, which are commonly described as AR-10-style rifles, but is chambered to fire the 6.5mm Creedmoor round.[source]MK24 Mid-Range Gas Gun-Assault · explicit MARS-L/MARS-H cartridge scope |
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| Action | API blowback[source] | Gas-operated , rotating bolt (internal piston, not direct impingement ) or Short-stroke piston[source]LMT Modular Ambidextrous Rifle System · Action |
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| Feed system | belt-fed, 32 or 48 grenades belt[source] | 5.56×45mm NATO : 30-round detachable box magazine 7.62×51mm NATO 20-round detachable box magazine[source]LMT Modular Ambidextrous Rifle System · Feed system |
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| Sights | KAN/TVS-5 night vision scope can be attached[source] | — |
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| Reported operators |
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