Home / Accessory-Silencer Accessories / CGS Group PISTON 1/2X36 BLACK You cannot add "SIG SAUER FLASH HIDER CL 5.56MM 25 DEG #" to the cart because the product is out of stock. Sale! CGS Group PISTON 1/2X36 BLACK$5500 $5335 Out of stock SKU: CGS-KRK-1/2X36PISTBK Category: Accessory-Silencer Accessories Product ID: 29109 Description Description Fits Kraken/MOD9/Nautilus17-4PH Stainless Steel Related products Sale! Dead Air Armament GHOST FIXED MOUNT 5/8X24 $8900 $7865 Gemtech PISTON GM9/MM9/TUNDRA 1/2-28 $8000 SilencerCo O-RING BOOSTER PACK $900 Gemtech GM9 THREAD REAR MOUNT M18X1RH $9100