The Heckler & Koch Mark 23 is a large-frame .45 ACP semi-automatic pistol developed for demanding service use. Its double-action and single-action operating system combines a deliberate first trigger pull with a lighter single-action follow-up, while the fixed 3-dot sights support practical target acquisition. The 5.87-inch polygonal barrel is threaded for a suppressor, and the polymer frame with interchangeable backstrap grip system helps provide a secure, adaptable hold. Match-grade accuracy and robust construction make the Mark 23 a substantial duty and range pistol.

Key features

• .45 ACP chambering with 10+1 capacity for service and range use
• Double-action and single-action operating system with manual safety and decocker
• 5.87-inch threaded polygonal barrel with 0.578x28 threads
• Fixed 3-dot sights for a clear, familiar sight picture
• Polymer frame with interchangeable backstrap grip system
• Blue/Black finish on the slide and frame components specified for this configuration

The Heckler & Koch Mark 23 combines service-grade durability, match-grade accuracy, and suppressor-ready functionality in a proven .45 ACP platform.