Home / Accessory-Silencer Accessories / Yankee Hill Machine Company SIDEWINDER PISTON 40SW 9/16X24 View cart “Gemtech ADAPTER GM-45/BLACKSIDE 1/2-28” has been added to your cart. 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! Rugged Suppressors OBSIDIAN45 3 LUG ADAPT 9/16X24 $8500 $7561 Sale! Rugged Suppressors TITANIUM FRONT CAP 7.62 $10000 $8715 Sale! Dead Air Armament GHOST FIXED MOUNT 5/8X24 $8900 $7865 Sale! Dead Air Armament WOLVERINE INSERT 15MM RH HK $8900 $7865