At the time the program was beginning, HK was studying what aspects were most desirable in handguns for the U.S. They were awarded developmental contracts to produce 30 systems. Īfter several tests, Heckler & Koch and Colt submissions were selected to move to phase I of the OHWS program in August 1991. The pistol had to be corrosion resistant, have a high mean rounds between failures (MRBF), and be able to serve as a primary weapon. A request for quote was for a system that included a pistol, suppressor, and laser aiming module. Upgrading the M1911 would cost more than it was worth, so it was decided that they would select an entirely new design. High pressure rounds would destroy it and it did not fire reliably with a suppressor. The M1911 had been proven in service for over 70 years, but was rejected. The OHWS pistol had to fire many types of rounds in addition to the +P cartridge and have a long service life with the high pressure ammo. 45 ACP caliber was chosen and improved upon with the high velocity, high pressure 185 gr (12.0 g) +P loading. The FBI had selected the 10 mm auto to replace their 9 mm pistols, but it was too powerful, few manufacturers produced it, and the round caused short weapon service life. The caliber for the OHWS was quickly decided not to be the NATO standard 124 gr (8.0 g) 9 mm due to lack of stopping power. SOCOM's use of small units that operate in close means that pistols are more likely to be used as primary weapons. It would replace pistols like the 9 mm M9, which was used by regular troops as a secondary weapon. One area of improvement was the pistol, undertaken by the Offensive Handgun Weapon System (OHWS) competition. In response, SOCOM decided to standardize small arms among all units. The logistics of getting spare parts for all these weapons was overwhelming. Studying small arms revealed that there were 120 types and configurations of infantry weapons in different units. In 1989, US SOCOM began reviewing their equipment to see which gear fit the needs of their special close quarters battle role. 45 ACP round has considerable stopping power and yet is subsonic, making it suitable for use with a suppressor. It remains reliable in harsh conditions, making it suitable for use by special forces. The firearm was tested and found to be capable of firing tens of thousands of rounds without a barrel change. The MK 23 is part of a larger weapon system that includes an attachable Laser Aiming Module (LAM), a suppressor, and some other features such as a special high-pressure match cartridge (. A decocking lever is on the left side, which will silently lower the cocked hammer. The magazine release is at the rear edge of the trigger guard, which is wide enough to allow the use of gloves. It also features an ambidextrous safety and magazine release on both sides of the frame. It uses a polygonal barrel design, which is reported to improve accuracy and durability, and is much more expensive to produce. The MK 23 is designed for exceptional durability in harsh environments, being waterproof and corrosion-resistant. The MK 23 is considered a match grade pistol, and is capable of making a 2-inch (51 mm) group at 25 metres (27 yd). The civilian version of the Mk23 sold by itself is designated the Mark 23. The LAM and suppressor were developed by Insight Technology and Knight's Armament Company (KAC), respectively. While the USSOCOM MK23 designation usually applies to the complete system, it is also commonly used in reference to the pistol component alone. 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 pistols began in May 1996 to the special operation units. 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. The USSOCOM version of the MK23 came paired with a laser aiming module (LAM) and suppressor. 45 ACP, designed specifically to be an offensive pistol.
#HK DATE CODES MAG MOD#
The Heckler & Koch MK 23, MK 23 MOD 0, Mark 23, or USSOCOM MARK 23 is a semi-automatic large-frame pistol chambered in. Short recoil, DA/SA, Modified Browning Action, Linkless. 45 Super using factory parts and no modifications
MARK 23 equipped with suppressor and laser aiming module.
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