Home / Accessory-Silencer Accessories / CGS Group PISTON 1/2X28 BLACK View cart “Yankee Hill Machine Company NIELSEN PISTON 9MM M13.5X1LH” 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 Sale! Yankee Hill Machine Company SIDEWINDER PISTON 45ACP.578X28 $7495 $7135 Sale! SIG SAUER MUZZLE BRK CL 7.62MM 90 DEG $17999 $16957 Sale! Yankee Hill Machine Company SIDEWINDER PISTON 45ACP 16X1LH $7495 $7135 Sale! Gemtech ADAPTER GSG-1911 M9X.75-1/2-28 $4500 $4183