Home / Accessory-Silencer Accessories / CGS Group PISTON 13.5X1LH BLACK View cart “SIG SAUER FLASH HIDER CL 5.56MM 90 DEG” has been added to your cart. 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 Sale! Yankee Hill Machine Company SIDEWINDER PISTON 45ACP.578X28 $7495 $7135 Gemtech THREAD PROTECTOR 1/2-28 RF $1800 Sale! Rugged Suppressors R3 FLASH HIDER M18X1 $10000 $8715 SilencerCo O-RING BOOSTER PACK $900