Heckler & Koch MARK 23

The Heckler & Koch MK 23, MK 23 MOD 0, Mark 23, or USSOCOM MARK 23, is a semi-automatic large-frame pistol chambered in .45 ACP. designed specifically to be an offensive pistol. The USSOCOM MK23 was adopted by the United States Special Operations Command (USSOCOM) for special operations units beating out the nearest competitor, Colt’s OHWS.