Heckler & Koch Mark 23 .45 ACP OD-Green Semi-Auto Pistol – Threaded Barrel, Match Trigger, Limited Commercial USSOCOM Variant
The HK Mark 23 is the direct commercial version of the legendary MK 23 MOD 0 adopted by USSOCOM. This full-size .45 ACP pistol delivers a ≤2 inch accuracy guarantee at 50 m, combines a cold-hammer-forged, O-ring-equipped threaded barrel with a proprietary recoil-reduction system, and features an OD-green polymer frame produced only in special-run batches. Ambidextrous controls, a match-grade DA/SA trigger, and luminous combat sights make this example a standout for shooters and collectors alike.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Bore Condition: Excellent – Clean, mirror finish, no signs of wear.
Rifling: Excellent Rifling – Sharp lands and grooves.
Specific Condition Notes: This pistol exhibits minimal signs of use, with just slight evidence of handling on the slide and frame.
What's Included
- HK factory plastic hard case with red HK logo
- HK Mark 23 operator's manual
- Two 12-round HK OEM steel magazines (Mark 23 pattern)
Developed alongside the MK 23 MOD 0 program, this Mark 23 carries the same oversized trigger guard, ambidextrous frame-mounted safety/decocker, and paddle-style magazine release designed for gloved operation in adverse environments. The 5.87 inch steel barrel is threaded 16×1 mm RH and capped by an O-ring that maintains tight lock-up shot after shot.
The cold-hammer-forged polygonal bore maximizes velocity and service life, while HK’s proprietary recoil-reduction system trims slide impulse by roughly 30 percent to aid rapid follow-up shots. A match-grade DA/SA trigger delivers a smooth double-action pull and a crisp, light single-action break for precise shot control.
The OD-green, fiber-reinforced polymer frame is part of a limited intermittent production run, adding collector appeal without sacrificing durability. Aggressive pebble-texture grip panels provide a secure grasp, and the black hostile-environment–coated slide resists corrosion in harsh conditions.
Fully adjustable tritium 3-dot combat sights offer a clear, luminous sight picture in low light. The proprietary front rail accommodates the original Knight’s Armament LAM unit, maintaining authenticity for users who want the pistol in its intended configuration.