Home / Accessory-Magazines / Heckler and Koch (HK USA) MAGAZINE USP45 45ACP 10RD # View cart “Warne M&P 9/40 MAG EXTENSION FDE” has been added to your cart. Heckler and Koch (HK USA) MAGAZINE USP45 45ACP 10RD #$4900 Out of stock SKU: 215954S Category: Accessory-Magazines Product ID: 41661 Description Description Extended Floorplate Related products Ruger 77/17 MAGAZINE 17HORNET 6RD $3795 SIG SAUER MAG SP2022 357SIG/40S&W 10RD $4999 Smith and Wesson MAGAZINE M&P40C 40S&W 10RD $4200 Sale! Warne GLOCK 19/23 MAG EXT +5/+4 GRY $5449 $5201