The Barrett M82A1 is the definitive semi-automatic anti-materiel rifle, chambered in .50 BMG and adopted by US and allied militaries worldwide. Its recoil-operated design and 10-round magazine make it the standard against which all other .50 BMG rifles are measured. Type: Rifle Action: Semi-Automatic Caliber: .50 BMG Capacity: 10 Year introduced: 1989, USA Weight: 320 oz Overall length: 57" Status: Active Military use: Yes Intended use: Tactical