The HK Mark 23 is a full-size semi-automatic pistol chambered in .45 ACP, designed to meet demanding military performance and durability requirements. Development of the Mark 23 began in the early 1990s as part of a U.S. Special Operations Command program focused on reliability, service life, and accuracy in adverse conditions.
The pistol features a precision barrel, robust slide and frame construction, and adjustable high-profile sights. Its design emphasizes consistency and longevity without the use of hand-fitted components typically found in custom-built pistols. The Mark 23 entered U.S. military service in 1996 and was evaluated through extensive endurance, reliability, and accuracy testing.
Specifications
- Caliber: .45 ACP
- Magazine Capacity: 12 rounds
- Barrel Length/Thread Pitch: 5.20 inches; M16x1 RH
- Overall Length: 8.50 inches
- Overall Height: 5.91 inches
- Overall Width (with lever): 1.54 inches
- Weight (with empty magazine): 31.20 oz
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