The USP Tactical .45 ACP is the .45-caliber suppressor-ready variant of the USP Tactical, featuring a threaded extended barrel and suppressor-height sights. It was developed as a more compact alternative to the Mark 23 SOCOM for special operations personnel who required a suppressor-capable .45 without the bulk of the SOCOM pistol. Type: Semi-Auto Pistol Action: DA/SA Caliber: .45 ACP Capacity: 12 Year introduced: 1998, Germany Weight: 28.6 oz Overall length: 8.23" Status: Active Military use: Yes Intended use: Tactical, Suppressor Host, Special Operations