--- title: "HK USA Mark 23 .45 ACP Threaded Pistol" description: "Black .45 ACP DA/SA pistol with a 5.87\" threaded barrel, match-grade trigger, ambidextrous safety, and 12rd maximum capacity." canonical_url: "https://www.kygunco.com/product/heckler-and-koch-hk-usa-81000078-mark-23-45-acp-da-sa-12rd" meta: author: KYGUNCO "og:description": "Black .45 ACP DA/SA pistol with a 5.87\" threaded barrel, match-grade trigger, ambidextrous safety, and 12rd maximum capacity." "og:image": "https://cdn.kygunco.com/assets/products/156519/thumbnail.jpg?v=1776773782" "og:image:height": "500" "og:image:width": "500" "og:title": "HK USA Mark 23 .45 ACP Threaded Pistol" --- > Index of every page on this site: [llms.txt](https://www.kygunco.com/llms.txt) [Home](https://www.kygunco.com/) / [Shooting](https://www.kygunco.com/category/shooting) / [Guns](https://www.kygunco.com/category/shooting/guns) / [Handguns](https://www.kygunco.com/category/shooting/guns/handguns) / [Semi-Auto](https://www.kygunco.com/category/shooting/guns/handguns/semi-auto) / HCK-81000078 ![Main product image](https://static.kygunco.com/cdn-cgi/image/f=auto,w=600/assets/products/156519/main.jpg?v=1776773782) For illustration purposes only, this image may not be an exact representation of the product. # HK USA Mark 23 45 ACP 5.9" 12rd DA/SA Pistol w/ Threaded Barrel - Black The HK Mark 23 is a .45 ACP DA/SA pistol with a black finish, 5.87" threaded barrel, match-grade trigger, fixed sights, and a 12+1 maximum capacity. It features a polymer frame, steel slide, ambidextrous safety and magazine release, frame accessory mounting grooves, and a decocking lever. Two factory magazines are included. See Price In Cart ** 5 interest-free payments of **$460.40** with ![Sezzle logo](https://www.kygunco.com/brands/sezzle.svg) ** ![Credova logo](https://www.kygunco.com/brands/credova.svg) As low as **$217.68**/month with ![Credova text logo](https://www.kygunco.com/brands/credova-text.svg) ** Online In Store ** Free Shipping Enjoy delivery to the Lower 48 States at no cost. ** Ships To FFL Dealer Handled by our expert shippers in Bardstown, KY. ** Check Local Restrictions Not sure whether this item can be shipped to your area? Enter your ZIP code for a quick check. Selling fast. Limited quantities available. Item # 156519 Style HCK-81000078 UPC 642230261587 Condition New Manufacturer [HK USA](https://www.kygunco.com/brand/hk-usa) Model Mark 23 Hand Ambi Finish Black Round Capacity 12 Caliber 45 ACP Action Double/Single Action Barrel Length 5.9 in The HK Mark 23 .45 ACP pistol was engineered to deliver true match-grade accuracy while surpassing the most demanding durability and reliability standards ever set for a combat handgun. Developed beginning in 1991 for U.S. Special Operations Command and fielded in 1996, the Mark 23 combines exceptional precision, extreme service life, and battlefield-proven performance without relying on hand-fitted components typical of costly custom pistols. FEATURES - Match-grade accuracy achieved without hand-fitted parts - Threaded barrel with O-ring lockup for enhanced consistency - Polygonal bore profile for improved sealing and projectile stability - Match-grade trigger system - One-piece machined slide engineered for extended service life - Frame-mounted decocking lever with separate ambidextrous safety - Oversized trigger guard designed for gloved use - Universal accessory mounting grooves on the frame - Ambidextrous magazine release controls - Extended slide release for positive manipulation - Extractor functions as a loaded chamber indicator - Patented Lock-Out Safety device - Supplied with two factory magazines SPECIFICATIONS - Caliber: .45 ACP - Action: DA / SA - Maximum Capacity: 12+1 - Barrel Length: 5.87" - Overall Length: 9.65" - Height: 5.90" - Width: 1.53" - Weight: 39.36 oz - Frame Material: Polymer - Frame Finish: Black - Slide Material: Steel - Slide Finish: Black - Slide Configuration: Serrated - Barrel Material: Steel - Barrel Finish: Black - Sight Configuration: Fixed - Safety: Ambidextrous - Trigger Type: Match grade ** WARNING: This product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to [www.p65warnings.ca.gov](https://www.p65warnings.ca.gov). ## Frequently Bought Together 0.0 ** ** ** ** ** 0 reviews ** ** ** ** ** 0 ** ** ** ** ** 0 ** ** ** ** ** 0 ** ** ** ** ** 0 ** ** ** ** ** 0 ## Don't Forget Your Ammo ```json {"@context":"https://schema.org","@graph":[{"@id":"https://www.kygunco.com/#website","@type":"WebSite","description":"Shop KYGUNCO for firearms, ammo, accessories, parts, and outdoor gear at low prices with fast, easy nationwide shipping.","name":"KYGUNCO","url":"https://www.kygunco.com/","publisher":{"@id":"https://www.kygunco.com/#/schema/organization/kygunco"}},{"@id":"https://www.kygunco.com/product/heckler-and-koch-hk-usa-81000078-mark-23-45-acp-da-sa-12rd#webpage","@type":"WebPage","description":"Black .45 ACP DA/SA pistol with a 5.87\" threaded barrel, match-grade trigger, ambidextrous safety, and 12rd maximum capacity.","name":"HK USA Mark 23 .45 ACP Threaded 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