Home / Accessory-Silencer Accessories / Rugged Suppressors OBSIDIAN PISTON 9/16×24 View cart “Yankee Hill Machine Company SIDEWINDER PISTON 40SW 9/16X24” has been added to your cart. Sale! Rugged Suppressors OBSIDIAN PISTON 9/16×24$8000 $7196 In stock Rugged Suppressors OBSIDIAN PISTON 9/16x24 quantity Add to cart SKU: OP007 Category: Accessory-Silencer Accessories Product ID: 27644 Description Description 17-4 Stainless Steel Related products Sale! Dead Air Armament SANDMAN 5.56 FRONT CAP $6900 $6042 Sale! Yankee Hill Machine Company SIDEWINDER PISTON 40SW 9/16X24 $7495 $7135 Sale! Yankee Hill Machine Company NIELSEN PISTON 9MM M13.5X1LH $7495 $7135 Sale! SilencerCo 3-LUG MUZZLE DEVICE 9MM 1/2X36 $8900 $8211