Home / Accessory-Silencer Accessories / Gemtech PISTON GM-45 LID USP View cart “Rugged Suppressors OBSIDIAN45 3 LUG ADAPT 9/16X24” 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! SIG SAUER MUZZLE BRK CL 7.62MM 25 DEG $17999 $16957 Gemtech PISTON GM-45 LID MK23 $14800 Gemtech PISTON GM9/MM9/TUNDRA 1/2-28 $8000 Sale! SilencerCo 3-LUG MUZZLE DEVICE 9MM 5/8X24 $8900 $8211