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BSmall arms
Assault rifle / Carbine Squad automatic weapon Designated marksman rifle (M38 DMR)
At a glance
Measured figures
LMT Modular Ambidextrous Rifle System · Length · "Maximum"
Single source914 mm (36.0 in) ("Maximum")[source]LMT Modular Ambidextrous Rifle System · Length
Configuration
| Specification | LMT Modular Ambidextrous Rifle System | M27 Infantry Automatic Rifle |
|---|---|---|
| Type | Assault rifle Battle rifle[source]LMT Modular Ambidextrous Rifle System · Type | Assault rifle / Carbine Squad automatic weapon Designated marksman rifle (M38 DMR)[source] |
| Place of origin | United States[source]LMT Modular Ambidextrous Rifle System · Place of origin | Germany / United States[source] |
| In service | 2015 - present[source]LMT Modular Ambidextrous Rifle System · In service | 2010–present[source] |
with adjustable stock
Single source36.9 to 33 in (940 to 840 mm) with adjustable stock[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
Barrel length
Single sourcefor RWK
Single sourceCyclic rate
Single sourceSustained rate
Single sourceCyclic rate: 700–900 rounds/min Sustained rate: 36 rounds/min[source]
Muzzle velocity
Single source2900 ft/s (884 m/s)[source]
Bars compare reported quantities only. A larger figure does not make a system better; configurations and test conditions differ.
| Designer | Lewis Machine & Tool Company[source]LMT Modular Ambidextrous Rifle System · Designer | Heckler & Koch[source] |
|---|
| Manufacturer | Lewis Machine & Tool Company[source]LMT Modular Ambidextrous Rifle System · Manufacturer | Heckler & Koch[source] |
|---|
| Cartridge | 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 | 5.56×45mm NATO[source] |
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| Action | Gas-operated , rotating bolt (internal piston, not direct impingement ) or Short-stroke piston[source]LMT Modular Ambidextrous Rifle System · Action | Gas-operated short-stroke piston , rotating bolt[source] |
|---|
| Feed system | 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 | 30-round STANAG magazine[source] |
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| Used by | — | United States Marine Corps[source] |
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| Wars | — | War in Afghanistan Syrian Civil War Operation Inherent Resolve[source] |
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| Designed | — | 2008[source] |
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| Unit cost | — | US$1,300[source] |
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| Produced | — | 2010–present[source] |
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| No. built | — | 14,100[source] |
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| Sights | — | Typically Trijicon ACOG , flip-up rear rotary diopter sight and front post[source] |
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| Reported operators |
| — |
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16.5 in (419 mm) 11 in (279 mm) for RWK[source]