Home / Accessory-Silencer Accessories / Yankee Hill Machine Company SIDEWINDER PISTON 40SW 9/16X24 You cannot add "Dead Air Armament XENO MOUNT FLASH HIDER 5/8X24" to the cart because the product is out of stock. Sale! Yankee Hill Machine Company SIDEWINDER PISTON 40SW 9/16X24$7495 $7135 Only 1 left in stock Yankee Hill Machine Company SIDEWINDER PISTON 40SW 9/16X24 quantity Add to cart SKU: YHM-3235-24 Category: Accessory-Silencer Accessories Product ID: 24701 Description Description 40 S&W Piston For Sidewinder Related products Sale! SIG SAUER FLASH HIDER CL 5.56MM 90 DEG $17999 $16957 Gemtech THREAD PROTECTOR 1/2-28 RF $1800 Sale! SilencerCo 3-LUG MUZZLE DEVICE 9MM 5/8X24 $8900 $8211 Sale! Rugged Suppressors TITANIUM FRONT CAP 7.62 $10000 $8715