HK Mark 23 .45 ACP Threaded-Barrel DA/SA Pistol, German-Made Full-Size
The Heckler & Koch Mark 23 stands out as one of the few production pistols originally engineered for the U.S. Special Operations Command Offensive Handgun Weapon System program. Built in Germany and chambered in .45 ACP, this full-size sidearm pairs a 5.87-inch cold-hammer-forged, threaded barrel with a match-grade DA/SA trigger, delivering exceptional durability, accuracy, and suppressor-ready versatility.
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.
Bore Rifling: Excellent Rifling – Sharp lands and grooves.
There are a few minor, superficial scratches and blemishes on the exterior surfaces.
What’s Included
- HK factory black polymer hard case
- HK Mark 23 Operator’s Manual
- Two 12-round factory HK steel magazines (Made in Germany)
- Spare barrel O-rings
- HK frame lockout key
- HK logo sticker
Designed for USSOCOM, the Mark 23 combines military-grade reliability with commercial availability. The cold-hammer-forged barrel features polygonal rifling and an O-ring lock-up that helps maintain sub-2-inch accuracy at 25 meters. Its M16×1 RH threads simplify suppressor attachment.
The glass-fiber-reinforced polymer frame hosts an integral proprietary accessory rail for lights and lasers. Dual captive recoil-buffer springs lessen felt recoil and extend the pistol’s claimed 30,000-round service life.
An ambidextrous paddle-style magazine release, combination safety/decocker lever, and loaded-chamber indicator provide intuitive, glove-friendly controls. High-profile three-dot sights and a long 7.76-inch sight radius support fast target acquisition.
The steel slide wears HK’s corrosion-resistant Hostile Environment finish and carries German CIP eagle N and CE proof marks, along with an HKI Columbus, GA import stamp. Serial prefix 23-031620 with “DE” proof indicates post-2005 German commercial proof standards.