Home / Accessory-Silencer Accessories / Gemtech PISTON GM-45 LID USP You cannot add "Dead Air Armament KEYMO FLASH HIDER M14X1LH" to the cart because the product is out of stock. 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 OBSIDIAN PISTON 9/16×24 $8000 Original price was: $8000.$7196Current price is: $7196. Sale! Dead Air Armament HUB DIRECT THRD MNT 5/8X24SIG $8900 Original price was: $8900.$8351Current price is: $8351. Sale! Dead Air Armament GHOST FIXED MOUNT M13.5X1LH $8900 Original price was: $8900.$7865Current price is: $7865. Sale! Dead Air Armament XENO MOUNT MUZZLE BRAKE 5/8X24 $8900 Original price was: $8900.$8472Current price is: $8472.