Description
This is a genuine HK factory magazine built to the same exacting standards as the original equipment that ships with Mark 23 pistols. It's constructed entirely from steel with a corrosion-resistant blued finish, designed to hold up through heavy use and demanding conditions. The magazine holds 10 rounds of .45 ACP ammunition in a double-stack configuration that feeds reliably into the chamber.
H&K Mark 23 10-Round Magazine Construction
Steel construction throughout means this magazine will resist corrosion and stand up to the abuse that comes with field use. The red follower provides positive indexing, making it easy to see where you are in the round count at a glance. A flat floorplate keeps the profile compact, and the build quality you get from HK means everything feeds smoothly without catching or binding.
Feeding and Compatibility
The extended feed lips work in tandem with a high-strength wire spring to properly align each cartridge as it feeds. This magazine is designed specifically for the Mark 23 pistol and will not work in HK USP models, so compatibility is straightforward for Mark 23 owners. Whether you're running range ammunition or defensive loads, the magazine feeds all common .45 ACP loads reliably.
Range Duty and Training
Mark 23 owners pick up this magazine as a spare for range sessions, training drills, or to build out a proper ammunition rotation for their pistol. Having multiple magazines on hand keeps you loaded and ready without the downtime of reloading between strings. The durable steel construction means these magazines will cycle through thousands of rounds without wearing out the feed lips or losing tension on the spring.
Key Specifications
- Manufacturer: Heckler & Koch
- Model: Mark 23
- Caliber: .45 ACP
- Capacity: 10 rounds
- Construction: Steel
- Finish: Blued Black
- Floorplate: Flat
- Follower: Red
- Magazine Type: Detachable Box Magazine
- Manufacturer Part Number (MPN): 50248616
- UPC: 642230266797
- Country of Origin: Germany
- Weight: 0.24 lbs
- Magazine Length: 5 inches
What’s Included
- 1x H&K Mark 23 .45 ACP 10-round steel magazine
Frequently Asked Questions
Will the Mark 23 10 round magazine work in my HK USP?
No. HK Mark 23 magazines are not cross-compatible with HK USP pistols. These magazines are designed specifically for the Mark 23 platform, so you'll need USP-specific magazines for that gun.
What's the difference between the 10 round and 12 round Mark 23 magazine?
The 10-round magazine is the original factory configuration for civilian Mark 23 pistols and is shorter overall. The 12-round magazine holds more ammunition but has a taller profile. Both feed reliably through the Mark 23.
Is this magazine marked or rolled marked with any specific details?
Yes, factory HK magazines are rolled marked with HK branding and specifications. The witness holes on the side allow for quick visual round counts without removing the magazine.
Can this 10 round Mark 23 magazine handle +P ammunition?
The Mark 23 platform is designed to handle standard .45 ACP and +P loads, so yes, this magazine will feed both safely. The magazine itself is built to the same specifications as original factory equipment.




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