Home / Accessory-Silencer Accessories / Rugged Suppressors OBSIDIAN FIXED MOUNT .578×28 View cart “Rugged Suppressors R3 FLASH HIDER M18X1” has been added to your cart. Sale! Rugged Suppressors OBSIDIAN FIXED MOUNT .578×28$8000 $7196 Out of stock SKU: OF007 Category: Accessory-Silencer Accessories Product ID: 30000 Description Description .578X28Designed for Fixed Barrels Related products Sale! Dead Air Armament HUB DIRECT THRD MNT M18X1.5 AI $8900 $8351 Sale! Dead Air Armament WOLVERINE INSERT 15MM RH HK $8900 $7865 Gemtech ADAPTER S&W M&P22C/22LR $6200