The HK USP45 12RD MAGAZINE EXTENDED FLOORPLATE (.45 ACP) – 215957S is a factory Heckler & Koch magazine built specifically for full-size USP45 pistols. Designed for proper fit, consistent feeding, and long service life, this is the magazine the platform was engineered around—not an aftermarket compromise.

Configured for 12 rounds of .45 ACP, this version features the extended floorplate, providing additional grip surface and improved control during reloads. On a full-size duty pistol like the USP45, that added purchase translates into more positive handling and faster, more confident manipulation under use.

Constructed with a steel magazine body, factory spring, and follower geometry tuned by HK, this magazine delivers the reliability the USP series is known for. Whether used for training, defensive staging, or duty applications, it maintains consistent performance across a wide range of ammunition types.

This listing reflects the current HK commercial packaging (215957S / UPC 642230244092), ensuring what you receive matches exactly what is ordered. An internal HK reference part number may also exist, but this is the correct retail configuration supplied through U.S. distribution.

For USP45 owners, additional factory magazines are not optional—they are part of maintaining readiness, reducing downtime, and supporting a proven handgun with the components it was designed to run.

Shop more HK magazines, handguns, and accessories at Huckleberry Arms.

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