HK Mark 23 .45 ACP DA/SA Pistol — Threaded Barrel, German-Made, Excellent Condition
The Heckler & Koch Mark 23 is the civilian counterpart to the USSOCOM-adopted MK 23 Mod 0 OHWS. Built in Germany and proof-marked “DE,” this full-size .45 ACP pistol is engineered for a 30,000-round service life and sub-2-inch accuracy at 25 meters. Its cold-hammer-forged polygonal match barrel is factory threaded and secured by an elastomer O-ring lock-up, giving buyers a suppressor-ready sidearm with enduring precision.
Condition
Overall Condition: Excellent — showing only faint signs of prior use or handling.
Bore Condition: Excellent — clean, mirror finish, no signs of wear.
Rifling: Excellent — sharp lands and grooves.
What’s Included
- HK factory hard case, serial-matched to pistol
- HK Mark 23 Operator's Manual
- 1 × 12-round steel HK magazine
This commercial Mark 23 retains the exacting build standards specified by the U.S. Special Operations Command, including an oversized slide with a dual-spring recoil system and integral polymer buffer that tames recoil and lengthens service life.
The 5.87-inch threaded barrel mates to the slide via an O-ring interface, improving lock-up consistency for match-grade accuracy. Polygonal rifling enhances velocity and eases cleaning, while the thread pitch is ready for commonly used .45 ACP suppressors or muzzle devices.
Ambidextrous paddle-style magazine releases, an ambidextrous safety/decocker, and a large external ring hammer make the pistol fully controllable for right- or left-handed shooters. High-profile, three-dot sights clear most suppressor bodies and adjust with screws for precise zeroing.
The glass-fiber–reinforced polymer frame carries a proprietary accessory rail originally designed for the PEQ-6 laser/illuminator, offering a solid mounting point for mission-specific lights or lasers.