The HK Mark 23 is a full-size .45 ACP semi-automatic pistol designed around a robust double-action/single-action operating system. Its Flat Dark Earth polymer frame is paired with a matte-finished slide, an ambidextrous manual safety, and a decocker for flexible carry and handling. The 5.87-inch threaded barrel accepts compatible muzzle accessories, while the factory three-dot sights provide a familiar sight picture. The pistol uses 12-round magazines and includes two magazines.

Key features

• Double-action/single-action operation provides a deliberate double-action first shot and a lighter single-action follow-up
• 5.87-inch threaded barrel supports compatible muzzle devices and suppressors
• Ambidextrous manual safety and decocker accommodate varied handling preferences
• Three-dot standard sights provide a clear, familiar sight picture
• Flat Dark Earth polymer frame balances durability with manageable carry weight
• Includes two 12-round magazines

The HK Mark 23 combines a proven operating system, accessory-ready barrel, and full-size .45 ACP performance in a distinctive Flat Dark Earth configuration.