Home / Accessory-Silencer Accessories / Gemtech PISTON GM-45 LID USP View cart “Dead Air Armament SIG MOSQUITO THRD ADAPT 1/2X28” has been added to your cart. Gemtech PISTON GM-45 LID USP$14800 Out of stock SKU: 12191 Category: Accessory-Silencer Accessories Product ID: 26717 Description Description GM-45/Blackside PistonFits HK USP 45 Pistols Related products Gemtech PISTON GM9/MM9/TUNDRA 1/2-28 $8000 Sale! SilencerCo BRAVO ANCHOR BRAKE 458CAL BLK $9400 Original price was: $9400.$8606Current price is: $8606. Sale! Dead Air Armament SANDMAN 5.56 FRONT CAP $6900 Original price was: $6900.$6042Current price is: $6042. Yankee Hill Machine Company QD MOUNT THEAD PROTECTOR $1795