Home / Accessory-Silencer Accessories / CGS Group PISTON 13.5X1LH BLACK You cannot add "Gemtech PISTON GM-45 LID MK23" to the cart because the product is out of stock. Sale! CGS Group PISTON 13.5X1LH BLACK$5500 $5335 Out of stock SKU: CGS-KRK-13.5X1LHBK Category: Accessory-Silencer Accessories Product ID: 30543 Description Description Fits Kraken/MOD9/Nautilus17-4PH Stainless Steel Related products Gemtech THREAD PROTECTOR 1/2-28 RF $1800 Sale! SilencerCo BRAVO ANCHOR BRAKE 458CAL BLK $9400 $8606 Sale! Rugged Suppressors TITANIUM FRONT CAP 7.62 $10000 $8715 Sale! SilencerCo BRAVO ANCHOR BRAKE 30CAL BLACK $9400 $8606