HK 50248609 USP Black Detachable 15rd 9mm Luger (Full Size)
https://www.tandktactical.com/shop/642230266728-hk-50248609-usp-black-detachable-15rd-9mm-luger-full-size-36788
https://www.tandktactical.com/web/image/product.template/36788/image_1920?unique=7836ef7
This replacement or spare magazine is compatible with your HK USP. It features a standard floor plate.
