The original full-size Px4 Storm introduced polymer-frame construction to a Beretta service pistol while retaining the rotating-barrel locking system. Modular grip backstraps for different hand sizes. Integral accessory rail. Type: Pistol Action: Semi-Automatic Caliber: 9mm Capacity: 17 Year introduced: 2004, Italy Weight: 27.7 oz Overall length: 7.6" Status: Active Intended use: service, duty, home_defense