The Browning Automatic Rifle (known as the "BAR") M1918 was designed in 1917 by John Browning for the U.S. Expeditionary Corps in Europe. The M1918 is a selective fire, air-cooled automatic rifle chambered for the .30-06 Springfield rifle cartridge. It uses a gas-operated long-stroke piston rod actuated by propellant gases bled through a vent in the barrel. The bolt is locked by a rising bolt lock and the gun fires from an open bolt. The spring-powered...
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