Heckler & Koch HK Mark 23 .45 ACP 5.8″ Threaded
$1,786.99
Comes brand new in box with all accessories alongside one extra magazine.
Description
The HK Mark 23 is a large-frame, high-performance semi-automatic pistol originally developed by Heckler & Koch for the U.S. Special Operations Command as part of an “Offensive Handgun Weapon System.” Chambered in .45 ACP, it is engineered for exceptional reliability, durability, and accuracy under harsh conditions, with features such as a threaded barrel for suppressor use, match-grade trigger, and robust safety system. The Mark 23 is notable for its rugged construction and was one of the first .45 ACP pistols to enter U.S. military service since the 1911.
| Feature | Specification |
|---|---|
| Manufacturer | Heckler & Koch |
| Model | HK Mark 23 |
| Caliber | .45 ACP |
| Action Type | Short recoil, semi-automatic; DA/SA (double/single-action) |
| Barrel | Threaded, polygonal bore (suppressor-ready) |
| Overall Length | Approx. 9.65 in (245 mm) |
| Barrel Length | Approx. 5.87 in (149 mm) |
| Height | Approx. 5.90 in (150 mm) |
| Width | Approx. 1.53–1.54 in (39 mm) |
| Sight Radius | Approx. 7.76 in (197 mm) |
| Weight (Unloaded) | Approx. 39+ oz (1.2+ kg) |
| Magazine Capacity | ~12 rounds standard; restricted versions often 10 |
| Frame Material | Fiber-reinforced polymer |
| Slide Material | One-piece machined steel |
| Trigger Pull | Single-action (lighter), Double-action (heavier) |
| Sights | Fixed or adjustable iron sights |
| Safety Features | Ambidextrous safety, decocker, firing pin block, disconnector |







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