The M1918A2 BAR
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Name | Rifle, Caliber .30, Automatic, Browning, M1918 | Place of origin | United States | In service | 1918 � 1960s (U.S.) | Used by | See Users | Wars | World War I World War II Chinese Civil War Korean War First Indochina War Bay of Pigs Invasion Vietnam War (limited) Cambodian Civil War (limited) Thai � Laotian Border War Palestinian Civil War | Designer | John Browning | Designed | 1917 | Manufacturer | Colt’s Patent Firearms Manufacturing Company, Winchester Repeating Arms Company, Marlin-Rockwell Corporation, Royal McBee Typewriter Company, International Business Machines, Carl Gustafs Stads Gevärsfaktori, FN Herstal, Państwowa Fabryka Karabinów | Produced | 1917 � 1950s | Number built | 100,000+ (M1918) | Variants | See Variants | Weight | (M1918) Approx. 11 kg (M1922) 8.4 kg (M1918A1) 8.8 kg (M1918A2) 9.0 kg (wz. 1928) | Length | (M1918, M1922, M1918A1) 1215 mm (1.2 m) (M1918A2) 1110 mm (1.1 m) (wz. 1928) | Barrel/Blade length | 610 mm (0.6 m) (M1918, M1922, M1918A1, M1918A2) 611 mm (0.6 m) (wz. 1928) | Cartridge | .30-06 Springfield (7.62x63mm) (M1918, M1922, M1918A1, M1918A2) 7.92x57mm Mauser (wz. 1928) 7.65x53mm Belgian Mauser (FN Mle 1930, FN Mle D) 7x57mm Mauser 6.5x55mm (Kg m/21, m/37) .303 British (7.7x56mmR) 7.62x51mm NATO | Action | Gas-operated, tilting breech block | Rate of fire | 500 � 650 rounds/min (M1918, M1922, M1918A1) 300-450 or 500-650 rounds/min (M1918A2) 600 rounds/min (wz. 1928) | Muzzle velocity | 860 m/s (0.9 sp=us) (M1918, M1922, M1918A1, M1918A2) 853 m/s (0.9 sp=us) (wz. 1928) | Effective range | 100 � 1,500 yd sight adjustments (maximum effective range) | Maximum range | Approx. 4,500-5,000 yd | Feed system | 20-round detachable box magazine | Sights | Rear leaf, front post 784 mm (0.8 sp=us) sight radius (M1918, M1922, M1918A1) 782 mm (0.8 sp=us) (M1918A2) 742 mm (0.7 sp=us) (wz. 1928) |
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The Browning Automatic Rifle (BAR) was a family of US automatic rifles (or machine rifles) and light machine guns used by the United States and numerous other countries during the 20th century. The primary variant of the BAR series was the M1918, chambered for the .30-06 Springfield rifle cartridge and designed by John Browning in 1917 for the U.S. Expeditionary Corps in Europe as a replacement for the French-made Chauchat and M1909 Benet-Mercie machine guns.
The BAR was designed to be carried by advancing infantrymen, slung over the shoulder and fired from the hip, a concept called "walking fire"-thought to be necessary for the individual soldier during trench warfare. However in practice, it was most often used as a light machine gun and fired from a bipod (introduced in later models). The original M1918 version was and remains the lightest machine gun to fire the .30-06 Springfield cartridge, though the limited capacity of its standard 20-round magazine tended to hamper its utility in that role.
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