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At a glance
Measured figures
collapsed
Single source34.5 in (876.3 mm) collapsed[source]
stock collapsed
Single sourceConfiguration
| Specification | Barrett REC10 | M3 submachine gun |
|---|---|---|
| Type | Designated Marksman Rifle[source] | Submachine gun[source] |
| Place of origin | United States[source] | United States[source] |
| Manufacturer | Barrett Firearms Manufacturing[source] | General Motors , others[source] |
| Calibre | .308 Winchester / 7.62×51mm NATO[source] |
stock extended /
Single source29.1 in (740 mm) stock extended / 21.9 in (556.3 mm) stock collapsed[source]
Effective; Sights fixed to
Single sourceSights fixed to 100 yards (91 m)[source]
Barrel length
Single source8 in (203.2 mm)[source]
cyclic (= 7 1 ⁄ 2 / second)
Single source450 rounds/min cyclic (= 7 1 ⁄ 2 / second)[source]
Muzzle velocity
Single source900 ft/s (274 m/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] | Blowback , open bolt[source] |
|---|
| In service | — | 1943–present[source] |
|---|
| Used by | — | See Users[source] |
|---|
| Wars | — | World War II Chinese Civil War Greek Civil War Indonesian National Revolution First Indochina War Korean War Cuban Revolution Algerian War Bay of Pigs Invasion Vietnam War The Troubles Laotian Civil War Malayan Emergency Sino-Indian War Communist insurgency in Malaysia (1968–1989) Papua Conflict Rhodesian Bush War Cambodian Civil War Turkish invasion of Cyprus Shaba II Cambodian–Vietnamese War Sino-Vietnamese War Nicaraguan Revolution Salvadoran Civil War Argentine Dirty War Falklands War Soviet–Afghan War Iran–Iraq War Persian Gulf War Moro conflict Burundi Civil War Kosovo War First Ambon riots War in Afghanistan Iraq War Syrian Civil War[source] |
|---|
| Designer | — | George Hyde[source] |
|---|
| Designed | — | 1942[source] |
|---|
| Unit cost | — | Approx. US$ 20 (1943; equivalent to $279 in 2025)[source] |
|---|
| Produced | — | 1943–1945; early 1950s[source] |
|---|
| No. built | — | Total: 655,363 M3: 606,694 M3A1: 48,669[source] |
|---|
| Variants | — | M3A1 PAM1 PAM2 T29[source] |
|---|
| Cartridge | — | .45 ACP (11.43×23 mm) 9×19mm Parabellum .30 Carbine (7.62×33mm)[source] |
|---|
| Feed system | — | 30-round or 32-round detachable box magazines[source] |
|---|
| Sights | — | Fixed rear peep sight and blade foresight, calibrated to 100 yards for caliber .45 M1911 ball ammunition[source] |
|---|
| Former operator · Austria | — | Austria[source] |
|---|
| Former operator · Brazil | — | Brazil[source] |
|---|
| Former operator · People's Republic of China | — | People's Republic of China[source] |
|---|
| Former operator · France | — | France[source] |
|---|
| Former operator · Greece | — | Greece[source] |
|---|
| Former operator · Italian Partisans | — | Italian Partisans[source] |
|---|
| Former operator · Japan | — | Japan[source] |
|---|
| Former operator · Kingdom of Laos | — | Kingdom of Laos[source] |
|---|
| Former operator · Republic of China | — | Republic of China[source] |
|---|
| Former operator · South Korea | — | South Korea[source] |
|---|
| Former operator · Iran | — | Iran[source] |
|---|
| Former operator · North Vietnam | — | North Vietnam[source] |
|---|
| Former operator · South Vietnam | — | South Vietnam[source] |
|---|
| Former operator · Norway | — | Norway[source] |
|---|
| Former operator · Soviet Union | — | Soviet Union[source] |
|---|
| Former operator · United Kingdom | — | United Kingdom[source] |
|---|
| Reported operators |
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