The Galleries
- Robert E. Petersen Collection
- Ancient Firearms - 1350 to 1700
- Road to American Liberty - 1700 to 1780
- A Prospering New Republic - 1780 to 1860
- A Nation Asunder - 1861 to 1865
- The American West - 1850 to 1900
- Innovation, Oddities and Competition
- Theodore Roosevelt and Elegant Arms - 1880s to 1920s
- World War I and Firearms Innovation
- WWII, Korea, Vietnam and Beyond - 1940 to Present
- For the Fun of It
- Modern Firearms - 1950 to Present
- Hollywood Guns
Barrett M82A1 Semi-Automatic Sniper Rifle
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The Barrett M82A1 is a semi-automatic, air cooled, box magazine fed rifle chambered for the .50 cal., M2 Browning Machine Gun cartridge (.50 cal. BMG or 12.7 x 99mm NATO). This rifle operates by means of the short recoil principle. For military applications, the Barrett system is comprised of the rifle (M82A1), two ten-round magazines, self-leveling bipod legs, carrying handle, and iron or telescoping sights. Though used as a sniper rifle, these arms were also procured during Operation Desert Shield/Storm for use by U.S. Army Explosive Ordnance Disposal (EOD) units for use as a rifle disrupter of unexploded ordnance. This deactivated example was issued to U.S. Marine Corps Scout/Sniper units during the Gulf War.