Credit
https://commons.wikimedia.org/wiki/User:REMOV · CC BY-SA 4.0 · Resized · CC BY-SA 4.0 · Source ↗ · Modified
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At a glance
Measured figures
5,56A-91
Single sourceLength
Single sourceConfiguration
| Specification | A-91 | LMT Modular Ambidextrous Rifle System |
|---|---|---|
| Type | Bullpup Assault rifle[source] | Assault rifle Battle rifle[source]LMT Modular Ambidextrous Rifle System · Type |
| Place of origin | Soviet Union[source] | United States[source]LMT Modular Ambidextrous Rifle System · Place of origin |
| In service | 1990–present[source] | 2015 - present[source]LMT Modular Ambidextrous Rifle System · In service |
| Used by | Russian Police, Military Services |
660 mm (26.0 in) 670 mm (26.4 in) (5,56A-91)[source]
LMT Modular Ambidextrous Rifle System · Length · "Maximum"
Single source914 mm (36.0 in) ("Maximum")[source]LMT Modular Ambidextrous Rifle System · Length
5,56А-91
Single sourceWidth
Single source56 mm (2.2 in) 64 mm (2.5 in) (5,56А-91)[source]
5,56A-91
Single sourceHeight
Single source291 mm (11.5 in) 292 mm (11.5 in) (5,56A-91)[source]
5,56A-91 with the grenade launcher
Single sourceA-91 without the grenade launcher
Single source4.3 kg (9.48 lb) (A-91 without the grenade launcher) 4.4 kg (9.70 lb) (5,56A-91 with the grenade launcher)[source]
LMT Modular Ambidextrous Rifle System · Mass · Empty
Single source3.3kg (empty)[source]LMT Modular Ambidextrous Rifle System · Mass
Effective; 5,56A-91
Single sourceEffective; Effective firing range
Single sourceEffective; grenade launcher
Single source300 m 300 m (5,56A-91) 400 m (grenade launcher)[source]
Barrel length
Single source415 mm (16.3 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
5,56A-91
Single sourceRate of fire
Single source600–800 rounds/min 700 rounds/min (5,56A-91)[source]
Bars compare reported quantities only. A larger figure does not make a system better; configurations and test conditions differ.
| — |
| Designer | KBP Instrument Design Bureau[source] | Lewis Machine & Tool Company[source]LMT Modular Ambidextrous Rifle System · Designer |
|---|
| Designed | 1990[source] | — |
|---|
| Manufacturer | KBP Instrument Design Bureau[source] | Lewis Machine & Tool Company[source]LMT Modular Ambidextrous Rifle System · Manufacturer |
|---|
| Produced | 1991[source] | — |
|---|
| Variants | 5,56 A-91, A-91M[source] | — |
|---|
| Cartridge | 7.62×39mm 5.45×39mm 5.56×45mm NATO (5,56A-91) 40 mm caseless (grenade launcher)[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 |
|---|
| Calibre | 7.62×39mm , 5.45×39mm , 5.56×45mm NATO[source] | — |
|---|
| Action | Gas-operated , rotating bolt[source] | Gas-operated , rotating bolt (internal piston, not direct impingement ) or Short-stroke piston[source]LMT Modular Ambidextrous Rifle System · Action |
|---|
| Muzzle velocity | 715 (А-91), 910 (5,56А-91)[source] | — |
|---|
| Feed system | 30-round detachable box magazine[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 |
|---|
| Sights | Dioptric sight, Grenade launcher sight[source] | — |
|---|
| Reported operators | — |
|
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