Home / Accessory-Silencer Accessories / CGS Group PISTON 1/2X28 BLACK 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 Sale! Rugged Suppressors FLASH HIDER FRONT CAP 5.56 $10000 $8715 Gemtech THREAD PROTECTOR 1/2-28 RF $1800 Sale! Rugged Suppressors OBSIDIAN45 3 LUG ADAPT 9/16X24 $8500 $7561 Gemtech PISTON GM-45 LID MK23 $14800