The new Beretta Px4 Storm .45 Special Duty pistol is the most advanced sidearm of its kind, bar none. Designed to meet the rigorous specifications of S.O.C.O.M., the Px4 Storm .45 SD provides maximum firepower in any environmental and special duty situation. Built around Beretta's latest Px4 Storm modular technology, the Px4 Storm .45 SD includes the same features as the standard .45--along with various materials and finishes capable of withstanding the toughest military applications. An optimal grip angle ensures a correct line of sight and contoured to snugly fit the shooter's hand. Part of a newly patented modular system, the pistol adapts to different hand sizes easily with interchangeable backstraps (included). An ambidextrous manual safety lever is positioned on both sides of the slide for easy access by all shooters. A reversible magazine release button can be mounted on either side and can quickly be replaced by a smaller and larger size button (optional). An interchangeable slide catch can also be replaced with an optional low profile configuration. A standard Picatinny Rail (MIL-STD-1913) allows for an array of aftermarket accessories. Caliber: .45 ACP. Magazine Capacity: 10 rounds, staggered. Sights: 3-dot dovetail.