Home / Accessory-Silencer Accessories / Yankee Hill Machine Company SIDEWINDER PISTON 45ACP 16X1LH View cart “Yankee Hill Machine Company NIELSEN PISTON 9MM M13.5X1LH” has been added to your cart. Sale! Yankee Hill Machine Company SIDEWINDER PISTON 45ACP 16X1LH$7895 Original price was: $7895.$7188Current price is: $7188. Only 1 left in stock Yankee Hill Machine Company SIDEWINDER PISTON 45ACP 16X1LH quantity Add to cart SKU: YHM-3225-ML Category: Accessory-Silencer Accessories Product ID: 24698 Description Description 45 ACP Piston For Sidewinder Related products Gemtech ADAPTER MM9 FTM 1/2-28 $7500 Sale! Yankee Hill Machine Company SIDEWINDER PISTON 45ACP.578X28 $7895 Original price was: $7895.$7188Current price is: $7188. Gemtech GM9 THREAD REAR MOUNT M18X1RH $9100 Sale! Rugged Suppressors OBSIDIAN PISTON .578X28 $8000 Original price was: $8000.$7196Current price is: $7196.