Heckler & Koch Mark 23 45 ACP 12rd Magazine Black

The Heckler & Koch Mark 23 .45 ACP 12-round magazine is a factory-original, steel detachable magazine built to H&K's exacting standards. If you carry or shoot the Mark 23—H&K's iconic .45 ACP platform pistol—you already know the value of reliable backup magazines. Whether you're at the range, in competition, or depending on your sidearm for duty or personal defense, having spare magazines loaded and ready eliminates downtime and keeps you in the fight. This is the real deal: genuine H&K hardware, not an aftermarket knockoff.

The Mark 23 earned its reputation for rugged, no-nonsense performance, and its magazines live up to that standard. Twelve rounds of .45 ACP capacity gives you substantial firepower in a proven platform. The black finish is durable and low-profile, and the steel construction handles thousands of load cycles without springs that lose tension or feed lips that fail. If you own a Mark 23, you should own at least two spares—one loaded in a competition rig or backup holster, one stored for practice or qualification day.

Magazines are wear items. Springs fatigue, feed lips get dinged, and losing one to a range accident or forgotten equipment happens. Keep your Mark 23 combat-ready with factory-original replacements on hand.

Key Features

• 12-round capacity in .45 ACP
• Steel construction for durability and reliability
• Factory-original H&K engineering and tolerances
• Detachable design for field stripping and cleaning
• Black finish

Specifications

Frequently Asked Questions

Will this magazine work with my Mark 23?

Yes. This is a factory H&K magazine designed specifically for the Mark 23 platform in .45 ACP.

What's the capacity?

This magazine holds 12 rounds of .45 ACP ammunition.

Is this a genuine H&K part?

Yes. This is an original H&K-manufactured magazine, not a third-party reproduction or generic alternative.

How many spares should I have?

That depends on your use—competition shooters and duty carriers typically run at least two to three spares to minimize reload delays and have a backup if one is damaged. Range shooters may start with one and add more as needed.