Beretta's px4 storm features an exclusive beretta-designed locked breech with a rotating barrel system which reduces felt recoil and muzzle rise.The chrome-lined barrel provides extreme corrosion resistance and also features a deeply-recessed combat muzzle crown to protect the rifling.The light durable frame employs modern thermoplastic technology through the use of technopolymer-reinforced fiberglass and features an integral picatinny mil-std rail.The px4 storm has an ambidextrous safety/decocking lever and a reversible magazine release and it may be configured with backstraps.Includes magazine and backstraps.Frame Finish: BlackType: PistolAction: DA/SACaliber: 9mm LugerBarrel Length: 3.27"Capacity: 15+1Safety: Ambidextrous/Firing PinGrips: Black Interchangeable BackstrapSight Configuration: 3-Dot WhiteWeight: 27.3 ozFrame Material: PolymerBarrel Type: Chrome-LinedSlide Description: SerratedCase Type: HardSight Style: ContrastBarrel Length Range: 3.00" to 3.99"Weight Range: 16.00 oz to 31.99 oz