Home / Accessory-Silencer Accessories / Yankee Hill Machine Company SIDEWINDER PISTON 40SW 9/16X24 View cart “Rugged Suppressors OBSIDIAN45 3 LUG ADAPT 9/16X24” 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! Yankee Hill Machine Company SIDEWINDER PISTON 9MM 1/2X28 $7495 $7135 Gemtech ADAPTER MM9 FTM 1/2-28 $7500 Sale! SilencerCo BRAVO ANCHOR BRAKE 30CAL BLACK $9400 $8606 SilencerCo DELTA 1/2X28 THREAD SPACER $1900