The Beretta Px4 Storm in .45 ACP was evaluated by the FBI for special agent use. Features a rotating barrel lockup for reduced felt recoil, ambidextrous controls, and a polymer frame. Selected by limited FBI units for specific operational requirements. Type: Semi-Auto Pistol Action: Double/Single-Action Caliber: 45 ACP Capacity: 10 Year introduced: 2004, Italy Weight: 27.7 oz Overall length: 7.5" Status: Active Intended use: Law Enforcement, Duty