Home / Accessory-Silencer Accessories / Rugged Suppressors OBSIDIAN PISTON M16X1 RH View cart “Yankee Hill Machine Company SIDEWINDER PISTON 45ACP 16X1LH” has been added to your cart. Sale! Rugged Suppressors OBSIDIAN PISTON M16X1 RH$8000 Original price was: $8000.$7196Current price is: $7196. Out of stock SKU: OP005 Category: Accessory-Silencer Accessories Product ID: 30003 Description Description 17-4 Stainless Steel Related products SilencerCo DELTA 1/2X28 THREAD SPACER $1900 Sale! Dead Air Armament SANDMAN 5.56 FRONT CAP $6900 Original price was: $6900.$6042Current price is: $6042. Sale! Yankee Hill Machine Company SIDEWINDER PISTON 40SW 9/16X24 $7495 Original price was: $7495.$7135Current price is: $7135. Sale! Yankee Hill Machine Company SIDEWINDER PISTON 45ACP 16X1LH $7495 Original price was: $7495.$7135Current price is: $7135.