Home / Accessory-Silencer Accessories / Rugged Suppressors OBSIDIAN PISTON .578X28 You cannot add "Dead Air Armament XENO MOUNT MUZZLE BRAKE 1/2X28" to the cart because the product is out of stock. Sale! Rugged Suppressors OBSIDIAN PISTON .578X28$8000 $7196 Out of stock SKU: OP001 Category: Accessory-Silencer Accessories Product ID: 30006 Description Description 17-4 Stainless Steel Related products Sale! Rugged Suppressors R3 FLASH HIDER 3/4X24 $10000 $8715 Sale! Rugged Suppressors R3 FLASH HIDER M18X1 $10000 $8715 Gemtech THREAD PROTECTOR 1/2-28 RF $1800 Sale! Rugged Suppressors FLASH HIDER FRONT CAP 5.56 $10000 $8715