Home / Accessory-Silencer Accessories / Gemtech PISTON GM-45 LID USP View cart “Dead Air Armament WOLVERINE INSERT 15MM RH HK” 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 OBSIDIAN9 3 LUG ADAPT 13.5x1L $8500 $7561 Gemtech THREAD PROTECTOR 1/2-28 RF $1800 Sale! Gemtech ADAPTER SIG MOSQUITO $4500 $4183 Sale! Yankee Hill Machine Company SIDEWINDER PISTON 45ACP.578X28 $7495 $7135