HK Mark 23 .45 ACP 5.87in OD Green 10+1 81001075

The Heckler & Koch Mark 23 is a large-frame .45 ACP semi-automatic pistol built with a threaded polygonal 5.87-inch barrel and an OD green polymer frame. It pairs serviceable control features — including an ambidextrous safety lever and serrated steel slide — with a purpose-built design that includes two 10-round magazines. For a red-dot optic under $1,000 that complements the Mark 23’s service pistol characteristics, consider a Trijicon RMR Type 2 mounted on an RMR-compatible slide plate.

Applications for this pistol include precision range shooting and duty/service use where a robust, well-controlled large-caliber platform is desired.

Product Specifications

• The action is Double / Single Action.
• The barrel length is 5.87 inches and is threaded with a polygonal profile.
• The caliber is .45 ACP.
• The capacity is 10 + 1 rounds.
• The frame finish is OD Green polymer with an accessory rail.
• The grip material is Textured for positive purchase.
• The safety is a Ambidextrous Safety Lever; the decocking lever is separate from the safety lever.
• The slide is serrated steel and described as black Cerakote on some factory configurations.
• The pistol includes two 10-round magazines.
• The sights are white 3-dot factory-style sights.
• The design includes a mechanical recoil reduction system that the manufacturer states reduces recoil forces by 30%.
• The barrel features an O-ring to optimize side-to-barrel lockup for accuracy.
• The slide material is listed as steel.
• The product is listed under manufacturer part number 81001075.
• The UPC is 642230270053.

The Mark 23 blends a large-caliber pedigree with service-oriented features for shooters who prioritize durability and controllability in a full-size pistol. Its threaded barrel and robust slide/frame construction make it suitable for users who want a heavy-duty range pistol or a duty-capable sidearm with modular optics potential. The included magazines and factory detail work make the Mark 23 a complete package for those who value mechanical reliability and traditional controls.