The Magnum Research Mark XIX L6 .50 AE Desert Eagle Pistol is single action and has a 7-round capacity. It's built with a carbon steel barrel with integral muzzle brake and Picatinny rail and an aluminum frame with beavertail and Picatinny rail. Fixed combat sights, a serrated carbon steel slide and a Hogue finger groove grip complete the design. Magnum Research Mark XIX L6 .50 AE Desert Eagle Pistol - Handgun Semiauto Center Fire at Academy Sports