Home / Accessory-Silencer Accessories / Gemtech PISTON GM-45 LID USP Gemtech PISTON GM-45 LID USP$14800 In stock Gemtech PISTON GM-45 LID USP quantity Add to cart SKU: 12191 Category: Accessory-Silencer Accessories Product ID: 26717 Description Description GM-45/Blackside PistonFits HK USP 45 Pistols Related products Sale! Dead Air Armament SANDMAN 5.56 FRONT CAP $6900 Original price was: $6900.$6042Current price is: $6042. Sale! Dead Air Armament XENO MOUNT FLASH HIDER 1/2X28 $8900 Original price was: $8900.$8472Current price is: $8472. Sale! Dead Air Armament XENO QD NOMAD MOUNT $13900 Original price was: $13900.$11895Current price is: $11895. Sale! Yankee Hill Machine Company NIELSEN PISTON 9MM M13.5X1LH $7895 Original price was: $7895.$7188Current price is: $7188.