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At a glance
Measured figures
stock collapsed
Single sourcestock extended
Single sourceConfiguration
| Specification | Howa Type 20 | LMT Modular Ambidextrous Rifle System |
|---|---|---|
| Type | Assault rifle[source] | Assault rifle Battle rifle[source]LMT Modular Ambidextrous Rifle System · Type |
| Place of origin | Japan[source] | United States[source]LMT Modular Ambidextrous Rifle System · Place of origin |
| In service | 2019–present[source] | 2015 - present[source]LMT Modular Ambidextrous Rifle System · In service |
| Used by |
780 mm (31 in) (stock collapsed) 850 mm (33 in) (stock extended)[source]
LMT Modular Ambidextrous Rifle System · Length · "Maximum"
Single source914 mm (36.0 in) ("Maximum")[source]LMT Modular Ambidextrous Rifle System · Length
Effective; Effective firing range
Single source500m[source]
Barrel length
Single source330 mm (13 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 source650–850 rounds/min[source]
Muzzle velocity
Single source850m/s[source]
Bars compare reported quantities only. A larger figure does not make a system better; configurations and test conditions differ.
Japan Ground Self-Defense Force[source]
| — |
| Designer | Harada Toshihiko (Original design) Kei Koyama (Original design) Koji Iwata (Original & current design) Kazuhiro Kuroda (Original & current design)[source] | Lewis Machine & Tool Company[source]LMT Modular Ambidextrous Rifle System · Designer |
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| Designed | 2015[source] | — |
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| Manufacturer | Howa[source] | Lewis Machine & Tool Company[source]LMT Modular Ambidextrous Rifle System · Manufacturer |
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| Unit cost | $2,600[source] | — |
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| Produced | 2020–present[source] | — |
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| Cartridge | 5.56×45mm 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 | Gas operated short stroke piston[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 | 30 round 5.56x45mm STANAG 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 |
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| Sights | Iron sights Optical sights can be mounted on rail[source] | — |
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| Reported operators | — |
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