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At a glance
Measured figures
collapsed
Single source34.5 in (876.3 mm) collapsed[source]
Grot B
Single sourceConfiguration
| Specification | Barrett REC10 | FB MSBS Grot |
|---|---|---|
| Type | Designated Marksman Rifle[source] | Assault rifle (MSBS Grot C) Bullpup assault rifle (MSBS Grot B)[source] |
| Place of origin | United States[source] | Poland[source] |
| Manufacturer | Barrett Firearms Manufacturing[source] | FB "Łucznik" Radom[source] |
| Calibre | .308 Winchester / 7.62×51mm NATO[source] | — |
Grot C, stock extended
Single source980 mm (39 in) (Grot C, stock extended) 720 mm (28 in) (Grot B)[source]
Effective; Effective firing range
Single source500–800 m (547–875 yd)[source]
Barrel length · source measurement 1
Single sourceBarrel length · source measurement 2
Single sourceBarrel length · source measurement 3
Single sourceGrot S · source measurement 4
Single sourceGrot S · source measurement 5
Single source254 mm (10.0 in) 406 mm (16.0 in) 508 mm (20.0 in) 267 mm (10.5 in) (Grot S) 368 mm (14.5 in) (Grot S)[source]
Rate of fire
Single source700–900 rounds/min[source]
Muzzle velocity
Single source890 m/s (2,900 ft/s)[source]
Bars compare reported quantities only. A larger figure does not make a system better; configurations and test conditions differ.
| Action |
|---|
semi-automatic[source] Direct impingement; semi-automatic[source] |
Short-stroke gas piston , rotating bolt[source] |
| Used by | — | See Users[source] |
|---|
| Wars | — | Russo-Ukrainian War Russian invasion of Ukraine M23 campaign[source] |
|---|
| Designer | — | Adam Gawron, Bartosz Stefaniak, Grzegorz Misiołek, Maciej Sajdak[source] |
|---|
| Designed | — | 2007[source] |
|---|
| Produced | — | 2007–2017 (prototypes) 2018–present[source] |
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| Variants | — | See Variants[source] |
|---|
| Cartridge | — | 5.56×45mm NATO 7.62×39mm[source] |
|---|
| Feed system | — | 30-round detachable 5.56×45mm NATO and 7.62×39mm STANAG box magazines , 60-round casket magazine[source] |
|---|
| Sights | — | Integrated Picatinny rail for various optical sights and Picatinny attachable iron sights[source] |
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| Reported operators |
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