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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 version of the MK23 came paired with a laser aiming module (LAM), and suppressor. 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. Development of the pistol began in 1991 as special operations representatives identified the need for an "Offensive Handgun Weapons System—Special Operations Peculiar", and delivery of the pistol's began in May 1996 to the special operation units.
While the USSOCOM MK23 designation usually applies to the complete system, it is also commonly used in reference to the pistol component alone. The LAM and suppressor were developed by Insight Technology and Knight's Armament Company (KAC), respectively. The civilian version of the Mk23 sold by itself is designated the Mark 23.

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  1. CountryGent

    Stoner 63, 63A, & Mk23: History and Mechanics

    Pretty interesting from a mechanical standpoint. Just thought I'd pass along the vid. Cheers.
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