Home / Accessory-Silencer Accessories / Rugged Suppressors OBSIDIAN FIXED MOUNT .578×28 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! SIG SAUER MUZZLE BRK CL 7.62MM 25 DEG $17999 $16957 SilencerCo DELTA 1/2X28 THREAD SPACER $1900 Sale! Dead Air Armament WOLVERINE INSERT 15MM RH HK $8900 $7865 Gemtech GM9 THREAD REAR MOUNT M18X1RH $9100