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HK Mark 23 .45 ACP Blue/Black Pistol

The HK Mark 23 is a full-size .45 ACP semi-automatic pistol designed for exceptional accuracy and durability. Its 5.87-inch threaded O-ring barrel uses a polygonal bore profile, while the match-grade trigger and one-piece machined steel slide support precise shooting. The corrosion-resistant Blue/Black finish is paired with a fiber-reinforced polymer frame, an oversized trigger guard, universal accessory mounting grooves, and an ambidextrous magazine release. A frame-mounted decocking lever, separate ambidextrous manual safety, loaded-chamber indicator, and Lock-Out Safety device provide additional control. The pistol includes two 12-round magazines.

Key features

  • Match-grade accuracy without hand-fitted custom parts
  • Threaded O-ring barrel with polygonal bore profile for suppressor compatibility
  • Double-action/single-action semi-automatic operation with match-grade trigger
  • Ambidextrous manual safety, decocking lever, and magazine release for flexible handling
  • Corrosion-resistant Blue/Black finish with a durable fiber-reinforced polymer frame
  • Universal mounting grooves for compatible accessories and an oversized trigger guard for gloved use

The HK Mark 23 combines match-grade performance, robust construction, and adaptable controls in a proven .45 ACP platform.

HK Mark 23 .45 ACP Blue/Black Pistol: quick facts

What caliber is the HK Mark 23 .45 ACP Blue/Black Pistol?
It is chambered in .45 ACP.
How many rounds does it hold?
12+1 rounds; magazines included: 2.
How big and heavy is it?
Barrel length 5.87 inches, overall length 9.65 inches, weight 39.9 ounces.
What kind of action does it use?
Semi-Automatic.
Is it optic ready or threaded?
Optic ready: No; threaded barrel: Yes.
What sights and finish does it have?
Sights: Standard Sights; finish: Blue/Black.
Is it new or used?
New, in the original packaging.
Can I buy it in Missouri?
Yes. It ships to a licensed FFL dealer in Missouri; you pick it up there after the background check. Missouri buyers pick this handgun up at a licensed dealer after a NICS check, with no permit to purchase and no waiting period; dealers require age 21 under federal law.
Is it in stock?
Yes, at $3004.79. Orders leave within 1-2 business days; shipping is free over $999.

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