Barrett M82A3 in .50 BMG with 29-inch barrel and improved monopod and rail system, the modernized variant of the M82A1 with a full MIL-STD-1913 rail. Type: Rifle Action: Semi-Auto Caliber: 50 BMG Capacity: 10 Year introduced: 2003, USA Weight: 310 oz Overall length: 57" Status: Active Military use: Yes Intended use: Military anti-materiel, EOD, long-range interdiction