The Mk 23 was built to USSOCOM specification — it needed to function suppressed, accept a laser aiming module, and hold mechanical accuracy standards that no other service pistol was then required to meet. H&K spent years on the project and produced a pistol that is oversized for conventional carry but unmatched in terms of the operational capability it was designed to deliver. USSOCOM adopted it and operators carried it in real-world use. Type: Pistol Action: Semi-Automatic Caliber: .45 ACP Capacity: 12 Year introduced: 1996, Germany Weight: 42 oz Overall length: 9.65" Status: Active Military use: Yes Intended use: Tactical, Duty