Heckler & Koch Magazine, Usp9, 15Rd., Replaces 21

The Heckler & Koch USP9 15-round magazine gives you a genuine OEM replacement for your USP9 compact handgun. Whether you're building out your magazine rotation for range days, competition, or carry, this is the real deal—German-engineered, factory-spec, and built to the same standards as the pistol itself. If you've got an older USP9 that came with larger-capacity mags and want to downsize for better concealability or just prefer a smaller profile in your duty bag, this 15-round mag is the straightforward answer.

Made from polymer with a durable black body and floor plate, this magazine includes witness holes along the back strap so you can see your round count at a glance without removing it from the mag well—a practical detail that matters when you're managing ammunition in the field or at the bench. The red follower provides fast visual feedback on mag status. It's a single, factory-fresh magazine in sealed packaging, ready to integrate into your USP9 setup the moment you pull it out of the bag.

If you're running an original USP9 platform and need a reliable OEM replacement or simply want to standardize your mag collection across multiple builds, this Heckler & Koch factory magazine delivers the fit and function you expect from the brand. No surprises, no compatibility headaches—just a well-made handgun magazine built to last.

Key Features

• Factory Heckler & Koch OEM magazine for USP9 handguns
• 15-round capacity with polymer construction
• Witness holes on rear body for round-count visibility
• Black polymer body with red follower for quick status identification
• Manufactured in Germany to original H&K specifications

Specifications

Frequently Asked Questions

Will this 15-round magazine fit my original USP9?

Yes. This is the factory OEM magazine for the USP9 platform. It's direct-fit and replaces the original magazine your pistol came with.

What does "Replaces 21" mean?

This indicates the magazine replaces an older or different configuration of USP9 mag. The 15-round capacity is the standard for this model.

Can I see the round count without removing the magazine?

Yes. The witness holes along the back strap are numbered 4 through 15, so you can check your remaining rounds at a glance while the magazine is inserted.

Is this a genuine Heckler & Koch magazine?

Yes, this is a factory OEM magazine manufactured in Germany to original H&K specifications.