Heckler & Koch HK MK 23 5.87” .45 ACP Offensive Handgun Weapon System
SOLD FOR: $2,425.00
LSB#: LSB260507EO001
Make: Heckler & Koch
Model: Mark 23, MK23
Serial Number: 23-028198, All serialized parts match, removed rail to verify.
Year of Manufacture: 2023 (CD Date Code)
Caliber: .45 ACP
Action Type: Double Action / Single Action, Semi-Automatic, Removable Magazine Fed Pistol with Decocker and manual safety.
Barrel Length: 5.87″ with M16x1 Right Handed thread.
Sights / Optics: The front sight is a white dotted blade dovetailed to the front of the slide. The rear sight is a windage adjustable two white dot square notch sight dovetailed and screw set to the rear of the slide. Three white dot sighting system.
Stock Configuration & Condition: The grips are integral to the frame with textured flanks and checkered front and back straps. The pistol has an accessory rail with a picatinny rail adapter made by HK parts, ambi magazine release, ambi safety, left side de-cocker, and lanyard loop. The frame shows some debris in the texturing and very minor rub wear in the mag well. There are no chips or cracks. Overall the frame is in about Excellent condition.
Type of Finish: Black
Finish Originality: Original
Bore Condition: The bore is bright and the polygonal rifling is highly defined. There is no erosion in the bore. If this pistol was fired outside of factory testing it was very little. In this writer’s opinion the bore rates 10/10.
Overall Condition: This slide and barrel show minor handling wear with a few light marks and some minor rub wear on the barrel hood. The markings are clear and the pins unmarred. Overall this pistol is in about Excellent+ condition.
Mechanics: The action functions correctly. The pistol has an intentionally heavier double action pull and a crisp, short single action pull with an excellent re-set. We did not fire this handgun. As with all used firearms, a thorough cleaning may be necessary to meet your maintenance standards.
Box, Paperwork & Accessories: This pistol includes an HK case with foam, manual, sticker, o-rings, tool, cable lock with keys, Lasermax Spartan that was non functional at the time of testing, a Silencerco M16X1 piston, 1 x 12 round magazine, and 1 x 16 RD magazine. Both magazines are in Excellent+ condition.
Our Assessment: The Heckler & Koch MK 23 is an iconic .45 ACP semi-automatic pistol developed for the U.S. Special Operations Command (SOCOM) in the 1990s. Designed for extreme durability, reliability, and suppressed operation, it features an M16x1RH threaded barrel, making it compatible with suppressors. With 2 magazines and a production date from 2023, this example is highly desirable, especially in Excellent+ condition. The MK 23 was historically relatively rare due to its limited production, as it was primarily made for military contracts, with only a fraction reaching the civilian market until recently.
Beyond its military pedigree, the MK 23 gained widespread recognition through pop culture, prominently featured in films like Tears of the Sun and in video games such as the Metal Gear Solid and SOCOM: U.S. Navy SEALs series. Its large, intimidating profile, legendary reliability, and association with elite military units have cemented its status as one of the most recognizable and respected handguns ever produced. For collectors and enthusiasts alike the MK 23 represents both a functional powerhouse and a piece of military and pop culture history. Please see our high quality photos via the link and best of luck with your bidding!!!-R.L.