Home / Accessory-Silencer Accessories / Yankee Hill Machine Company SIDEWINDER PISTON 40SW 9/16X24 View cart “Gemtech ADAPTER S&W M&P22C/22LR” has been added to your cart. Sale! Yankee Hill Machine Company SIDEWINDER PISTON 40SW 9/16X24$7495 Original price was: $7495.$7135Current price is: $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 R3 FLASH HIDER 3/4X24 $10000 Original price was: $10000.$8715Current price is: $8715. Sale! Dead Air Armament XENO QD NOMAD MOUNT $13900 Original price was: $13900.$11895Current price is: $11895. Sale! Dead Air Armament HUB DIRECT THRD MNT 5/8X24SIG $8900 Original price was: $8900.$8351Current price is: $8351. Sale! Dead Air Armament WOLVERINE INSERT 24MM RH LONG $8900 Original price was: $8900.$7865Current price is: $7865.