.45 ACP USP with reinforced polymer frame and recoil reduction system. The Mark 23 SOCOM's basis; the .45 USP handles full .45 ACP loads without buffered recoil of the Mk23. Type: Pistol Action: DA/SA Caliber: .45 ACP Capacity: 12 Year introduced: 1995, Germany Weight: 30.4 oz Overall length: 7.87" Status: Active Intended use: law_enforcement, self_defense