H&K Mark 23 .45 ACP | 5.87″ Threaded | 81001074

The Heckler & Koch Mark 23 is a purpose-built .45 ACP semi-automatic pistol with a 5.87″ threaded polygonal barrel, black serrated steel slide and an OD green polymer frame. The design emphasizes match-grade accuracy and durability and ships with two 12‑round magazines. Pair this pistol with a compact pistol red dot such as a Holosun 507C for fast target acquisition while keeping total optic cost well under $1,000.

Suitable applications include precision target shooting and duty/operational use where a large-frame .45 ACP with a threaded barrel and match-grade trigger is desirable.

Product Specifications

• The UPC is 642230269972.
• The manufacturer is listed as HECKLER & KOCH GMBH / HKI.
• The ATF model is MARK 23.
• The part number is 81001074.
• The caliber is .45 ACP.
• The barrel measures 5.87 inches and is threaded with a polygonal profile.
• The action is Semi-Auto (DA/SA).
• The pistol includes two 12-round magazines.
• The frame material is polymer with an OD green finish.
• The slide is constructed of steel with a black finish.
• The weight is listed in supplied data as multiple values; please review (see notes).
• The overall length is listed as 9.65 inches in supplier data.
• The sights are listed as fixed / white 3-dot contrast points.
• The NFA thread pattern is 16x1mm RH.
• Notable features include a match grade trigger, threaded barrel, and a frame-mounted decocker.

The Mark 23 delivers a platform oriented toward accuracy and service-grade durability while offering user-focused features such as an accessory rail and ambidextrous controls in many configurations.