Home / Accessory-Silencer Accessories / Rugged Suppressors OBSIDIAN PISTON M13.5X1 LH View cart “Yankee Hill Machine Company SIDEWINDER PISTON 45ACP.578X28” has been added to your cart. Sale! Rugged Suppressors OBSIDIAN PISTON M13.5X1 LH$8000 Original price was: $8000.$7196Current price is: $7196. Only 2 left in stock Rugged Suppressors OBSIDIAN PISTON M13.5X1 LH quantity Add to cart SKU: OP004 Category: Accessory-Silencer Accessories Product ID: 54267 Description Description 17-4 Stainless Steel Related products Sale! Dead Air Armament HUB DIRECT THRD MNT M18X1.5 AI $8900 Original price was: $8900.$8351Current price is: $8351. Sale! Dead Air Armament SANDMAN 5.56 FRONT CAP $6900 Original price was: $6900.$6042Current price is: $6042. Sale! Dead Air Armament XENO MOUNT FLASH HIDER 5/8X24 $8900 Original price was: $8900.$8472Current price is: $8472. Sale! Rugged Suppressors R3 FLASH HIDER M18X1 $10000 Original price was: $10000.$8715Current price is: $8715.