Home / Accessory-Silencer Accessories / Yankee Hill Machine Company SIDEWINDER PISTON 45ACP.578X28 Sale! Yankee Hill Machine Company SIDEWINDER PISTON 45ACP.578X28$7895 Original price was: $7895.$7188Current price is: $7188. Only 1 left in stock Yankee Hill Machine Company SIDEWINDER PISTON 45ACP.578X28 quantity Add to cart SKU: YHM-3225-28 Category: Accessory-Silencer Accessories Product ID: 24695 Description Description 45 ACP Piston For Sidewinder Related products Sale! SIG SAUER MUZZLE BRK CL 7.62MM 25 DEG $17999 Original price was: $17999.$16957Current price is: $16957. Dead Air Armament FN 5.7 THREAD ADAPTER 1/2X28 $4500 Sale! SilencerCo 3-LUG MUZZLE DEVICE 9MM 1/2X36 $8900 Original price was: $8900.$8211Current price is: $8211. Gemtech PISTON GM9/MM9/TUNDRA 13.5X1LH $8000