The Magnum Research Desert Eagle in .50 Action Express with 6-inch barrel is the iconic gas-operated semi-auto pistol chambered in the largest commercially available pistol cartridge. The .50 AE fires a 300-grain bullet at approximately 1,475 fps from the 6-inch barrel, generating over 1,400 ft-lbs of muzzle energy. The most powerful production semi-auto pistol available. Type: Semi-Auto Pistol Action: Gas-Operated Caliber: .50 AE Capacity: 7 Year introduced: 1992, USA/Israel Weight: 70.5 oz Overall length: 10.75" Status: Active Intended use: Hunting, Competition, Collecting