The Mark 23 SOCOM is a large-frame pistol developed at US Special Operations Command request for an Offensive Handgun Weapon System. It includes an integral suppressor attachment system and threaded barrel, an AN/LAM laser aiming module, and a match-grade barrel. The most capable and most expensive production pistol of its era. Type: Pistol Action: Semi-Automatic Caliber: .45 ACP Capacity: 12 Year introduced: 1996, Germany Weight: 42.3 oz Overall length: 9.65" Status: Active Military use: Yes Intended use: Military, Special Operations