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At a glance
Measured figures
Length
Single source1,080 mm (43 in)[source]
LMT Modular Ambidextrous Rifle System · Length · "Maximum"
Single sourceConfiguration
| Specification | AA-52 machine gun | LMT Modular Ambidextrous Rifle System |
|---|---|---|
| Type | General-purpose machine gun[source] | Assault rifle Battle rifle[source]LMT Modular Ambidextrous Rifle System · Type |
| Place of origin | French Fourth Republic[source] | United States[source]LMT Modular Ambidextrous Rifle System · Place of origin |
| In service | 1952–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 source600 mm (24 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
Caliber · source measurement 1
Single sourceCaliber · source measurement 2
Single source7.5 mm 7.62 mm[source]
Muzzle velocity
Single source830 m/s (2,700 ft/s)[source]
Bars compare reported quantities only. A larger figure does not make a system better; configurations and test conditions differ.
| Used by |
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See Users[source] |
| — |
| Wars | Algerian War Chadian Civil War Shaba II Lebanese Civil War Gulf War Bosnian War War in Afghanistan Ivorian Civil Wars 2011 Libyan uprising Syrian Civil War Centrafrican Civil War Operation Serval Russo-Ukrainian War[source] | — |
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| Designed | 1952[source] | — |
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| Manufacturer | Manufacture d'armes de Saint-Étienne (MAS)[source] | Lewis Machine & Tool Company[source]LMT Modular Ambidextrous Rifle System · Manufacturer |
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| Variants | NF-1 M.A.C. 58[source] | — |
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| Cartridge | 7.5×54mm French 7.62×51mm NATO[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 | Lever-delayed 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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| Rate of fire | 900 round/min[source] | — |
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| Feed system | 50-round non-disintegrating 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 | Iron Removable APX (SOM) telescopic sights IR scope[source] | — |
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| Designer | — | Lewis Machine & Tool Company[source]LMT Modular Ambidextrous Rifle System · Designer |
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| Reported operators |
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