Home / Accessory-Silencer Accessories / CGS Group PISTON 1/2X28 BLACK View cart “Gemtech GM9 THREAD REAR MOUNT M18X1RH” has been added to your cart. Sale! CGS Group PISTON 1/2X28 BLACK$5500 Original price was: $5500.$5335Current price is: $5335. Out of stock SKU: CGS-KRK-1/2X28PISTBK Category: Accessory-Silencer Accessories Product ID: 32848 Description Description Fits Kraken/MOD9/Nautilus17-4PH Stainless Steel Related products Sale! Dead Air Armament WOLVERINE INSERT 15MM RH HK $8900 Original price was: $8900.$7865Current price is: $7865. Sale! SIG SAUER MUZZLE BRK CL 7.62MM 90 DEG $17999 Original price was: $17999.$16957Current price is: $16957. Sale! Dead Air Armament HUB DIRECT THRD MNT 5/8X24SIG $8900 Original price was: $8900.$8351Current price is: $8351. Gemtech ADAPTER S&W M&P22C/22LR $6200