Home / Accessory-Silencer Accessories / Rugged Suppressors OBSIDIAN FIXED MOUNT .578×28 You cannot add "Dead Air Armament GHOST FIXED MOUNT 5/8X24" to the cart because the product is out of stock. 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 KEYMO FLASH HIDER M14X1LH $8900 $8472 Sale! SilencerCo BRAVO ANCHOR BRAKE 458CAL BLK $9400 $8606 Sale! Dead Air Armament SANDMAN 5.56 FRONT CAP $6900 $6042 Gemtech THREAD PROTECTOR 1/2-28 RF $1800