Home / Accessory-Silencer Accessories / Yankee Hill Machine Company SIDEWINDER PISTON 40SW 9/16X24 Sale! Yankee Hill Machine Company SIDEWINDER PISTON 40SW 9/16X24$7895 Original price was: $7895.$7188Current price is: $7188. 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 XENO MOUNT FLASH HIDER 5/8X24 $8900 Original price was: $8900.$8472Current price is: $8472. Sale! SilencerCo BRAVO ANCHOR BRAKE 458CAL BLK $9400 Original price was: $9400.$8606Current price is: $8606. Gemtech ADAPTER MM9 5/8-24 300BLK $7500 Sale! Dead Air Armament GHOST FIXED MOUNT 5/8X24 $8900 Original price was: $8900.$7865Current price is: $7865.