The Desert Eagle Component Kit features one frame, one slide and 3 calibers, making switching from one caliber to the next possible in a matter of seconds. Firearm Specifications DE50: 6 Barrel; 7 Rounds BAR446: .44 Magnum; 6 Barrel Black BAR3576: .357 Magnum; 6 Barrel Black .357 Magnum Bolt Assembly MAG44, 8 Rounds, .44 Magnum Magazine MAG357, 9 Rounds, .357 Magnum Magazine Shipped in Protective Aluminum Case