HK 50248610 USP Black Detachable 10rd 40 S&W (Full Size)
https://www.tandktactical.com/shop/642230266735-hk-50248610-usp-black-detachable-10rd-40-s-w-full-size-36780
https://www.tandktactical.com/web/image/product.template/36780/image_1920?unique=c6e73c7
This replacement or spare magazine is compatible with your HK USP. It features a standard floor plate.
