Home / Accessory-Silencer Accessories / Gemtech PISTON GM-45 LID USP View cart “Gemtech ADAPTER GM-45/BLACKSIDE 1/2-28” 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 Sale! Rugged Suppressors R3 FLASH HIDER M18X1 $10000 $8715 Sale! Yankee Hill Machine Company SIDEWINDER PISTON 45ACP.578X28 $7495 $7135 Sale! SilencerCo BRAVO ANCHOR BRAKE 30CAL BLACK $9400 $8606 Sale! Dead Air Armament SANDMAN 5.56 FRONT CAP $6900 $6042