Home / Accessory-Silencer Accessories / CGS Group PISTON 1/2X28 BLACK View cart “SilencerCo O-RING BOOSTER PACK” has been added to your cart. Sale! CGS Group PISTON 1/2X28 BLACK$5500 $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 Gemtech ADAPTER MM9 FTM 1/2-28 $7500 Sale! Rugged Suppressors TITANIUM FRONT CAP 7.62 $10000 $8715 Sale! SilencerCo 3-LUG MUZZLE DEVICE 9MM 5/8X24 $8900 $8211 Sale! Dead Air Armament WOLVERINE INSERT 15MM RH HK $8900 $7865