Introducing the Heckler & Koch factory replacement magazine designed for USP full-size models chambered in 9mm, offering an impressive 31-round capacity. This extended magazine protrudes well beyond the pistol's grip base, providing ample rounds for extended shooting sessions without frequent reloading. Crafted from high-quality polymer with a sleek matte black finish, the magazine includes a standard flat floor plate for ease of handling and stability during use. Manufactured to exacting standards by Heckler & Koch, it adheres meticulously to their specifications and tolerances, ensuring flawless compatibility and performance that matches the original equipment magazines provided with your firearm. Whether for competitive shooting or tactical applications, rely on this magazine for its exceptional fit and reliable operation, delivering enhanced capacity without compromising on quality.

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It is the customer’s responsibility for understanding state laws regarding all purchases made. For a comprehensive list of all Shipping Restrictions, please refer to our Shipping Restrictions By State Page found Here.

All NFA Rules Apply

These items are controlled by the U.S. Government and authorized for export only to the country of ultimate destination for use by the ultimate consignee or end-user(s) herein identified. They may not be resold, transferred, or otherwise disposed of, to any other country or to any person other than the authorized ultimate consignee or end-user(s), either in their original form or after being incorporated into other items, without first obtaining approval from the U.S. government or as otherwise authorized by U.S. law and regulations.

It is the customer’s responsibility for understanding state laws regarding magazine capacities. Palmetto State Armory abides by all state regulations regarding the sale of high capacity magazines. We DO NOT ship high-capacity magazines with firearms to certain states. We WILL NOT replace high capacity magazines with state compliant magazines. We DO NOT offer refunds in place of the magazines. Please see our terms and conditions for a list or restricted states.

California 10+ Round Magazine Buyers: PSA values your freedom and constitutional rights above all else. However, PSA will not accept new orders nor will ship any order until the Ninth Circuit Federal Court of Appeals mandate becomes finalized. Once this mandate is finalized, we will start accepting new orders and ship 10+ round magazines to California Customers.