Home / Accessory-Silencer Accessories / Yankee Hill Machine Company SIDEWINDER PISTON 40SW 9/16X24 View cart “Rugged Suppressors R3 FLASH HIDER 3/4X24” 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! Dead Air Armament WOLVERINE INSERT 15MM RH HK $8900 $7865 Sale! Rugged Suppressors R3 FLASH HIDER M18X1 $10000 $8715 SilencerCo DELTA 1/2X28 THREAD SPACER $1900 Sale! Yankee Hill Machine Company SIDEWINDER PISTON 45ACP 16X1LH $7495 $7135