Home / Accessory-Silencer Accessories / CGS Group PISTON 1/2X36 BLACK You cannot add "SIG SAUER FLASH HIDER CL 5.56MM 90 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! Gemtech ADAPTER SIG MOSQUITO $4500 $4183 Sale! Yankee Hill Machine Company NIELSEN PISTON 9MM M13.5X1LH $7495 $7135 Sale! SilencerCo 3-LUG MUZZLE DEVICE 9MM 1/2X36 $8900 $8211 Sale! Dead Air Armament WOLVERINE INSERT 15MM RH HK $8900 $7865