HK Mark 23 .45 ACP Semi-Auto Pistol, German-Made (1997) with 5.87" Threaded Barrel, DA/SA, Suppressor-Height Sights, 10+1
This German-made HK Mark 23 in .45 ACP is a 1997 production example with Ulm and Eagle/N proofs, the HK "KH" date code, and Sterling, VA import mark. It features the correct 5.87" threaded barrel with O-ring lockup and thread protector, DA/SA operation with frame-mounted safety and separate decocker, and suppressor-height iron sights with a fully adjustable rear. Matching serial numbers are present on the slide, barrel, and frame insert, in the 23-xxxx format.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Details: This firearm is in great shape, with minor surface scratches and small blemishes present.
What’s Included
- HK Mark 23 Operator's Manual
- Four 10-round steel magazines
- Unbranded thread-on faux suppressor
- No box or case included; any case shown in photos (e.g., woodland-camouflage soft case) is not included
The Mark 23 is the commercial/civilian configuration linked to HK's work on the USSOCOM OHWS program, and this example reflects that lineage with German manufacture, Ulm antler and Eagle/N proofs, and the "KH" date code confirming 1997. The importer marking reads Heckler & Koch, Inc., Sterling, VA. Serial formatting is 23-xxxx with matching numbers on the slide, barrel, and frame insert.
Its 5.87" extended, threaded barrel uses the Mark 23's O-ring lockup and comes with a thread protector installed. This configuration is correct for the model and provides the long slide/barrel profile associated with the platform.
Controls are DA/SA with a frame-mounted safety and a separate decocking lever positioned forward of the safety. The paddle-style magazine release and polymer frame with aggressive texturing provide the distinctive Mark 23 manual of arms and grip profile.
Sight regulation and visibility are handled by suppressor-height iron sights, combining a tall front post with a fully adjustable rear. The proprietary Mark 23 accessory rail is integrated into the frame. Capacity is 10+1 with the included 10-round magazines.