FORCETALLY
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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 | SIG SG 540 |
|---|---|---|
| Type | Assault rifle Battle rifle[source]LMT Modular Ambidextrous Rifle System · Type | Assault rifle (SG-540, SG-543) Carbine (SG-543) Battle Rifle (SG-542)[source] |
| Place of origin | United States[source]LMT Modular Ambidextrous Rifle System · Place of origin | Switzerland[source] |
| In service | 2015 - present[source]LMT Modular Ambidextrous Rifle System · In service | 1977–present[source] |
SG 540 · source measurement 2
Single sourceSG 540 · source measurement 4
Single sourceSG 540 stock extended /
Single sourceSG 540 stock folded
Single sourcestock folded SG 542 stock extended /
Single sourcestock folded SG 543 stock extended /
Single sourceSG 540: 950 mm (37.4 in) stock extended / 733 mm (28.9 in) stock folded SG 542: 1,000 mm (39.4 in) stock extended / 754 mm (29.7 in) stock folded SG 543: 805 mm (31.7 in) stock extended / 569 mm (22.4 in) stock folded[source]
LMT Modular Ambidextrous Rifle System · Mass · Empty
Single source3.3kg (empty)[source]LMT Modular Ambidextrous Rifle System · Mass
fixed stock SG 542
Single sourceSG 540
Single sourceSG 543 folding stock
Single sourceSG 540: 3.52 kg (7.76 lb) fixed stock SG 542: 3.55 kg (7.8 lb) SG 543: 3 kg (6.6 lb) folding stock[source]
Effective; sight adjustments
Single source100–500 m sight adjustments[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
SG 540
Single sourceSG 542
Single sourceRate of fire
Single source650–800 rounds/min[source]
SG 540
Single sourceSG 542
Single sourceSG 543
Single sourceSG 540: 980 m/s (3,215 ft/s) SG 542: 820 m/s (2,690.3 ft/s) SG 543: 875 m/s (2,870.7 ft/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 |
Schweizerische Industrie Gesellschaft (SIG)[source] |
| Manufacturer | Lewis Machine & Tool Company[source]LMT Modular Ambidextrous Rifle System · Manufacturer | Manurhin ( France ) INDEP ( Portugal ) FAMAE ( Chile )[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 | SG 540, SG 543: 5.56×45mm NATO SG 542: 7.62×51mm NATO[source] |
|---|
| Action | Gas-operated , rotating bolt (internal piston, not direct impingement ) or Short-stroke piston[source]LMT Modular Ambidextrous Rifle System · Action | Gas-operated , 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 | 20- or 30-round detachable box magazine[source] |
|---|
| Used by | — | See Users[source] |
|---|
| Wars | — | Lebanese Civil War The Troubles Somali Civil War Ivorian Civil Wars Syrian Civil War Militias-Comando Vermelho conflict[source] |
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| Designed | — | 1973–1977[source] |
|---|
| Produced | — | 1977–2002[source] |
|---|
| Variants | — | SG 542, SG 543[source] |
|---|
| Sights | — | Rear: rotating diopter drum; front: hooded post[source] |
|---|
| Reported operators |
|
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SG 543
Single sourceSG 540: 460 mm (18.1 in) SG 542: 465 mm (18.3 in) SG 543: 300 mm (11.8 in)[source]