Home / Accessory-Silencer Accessories / Rugged Suppressors OBSIDIAN FIXED MOUNT .578×28 You cannot add "SIG SAUER MUZZLE BRK CL 7.62MM 25 DEG" to the cart because the product is out of stock. Sale! Rugged Suppressors OBSIDIAN FIXED MOUNT .578×28$8000 Original price was: $8000.$7196Current price is: $7196. Out of stock SKU: OF007 Category: Accessory-Silencer Accessories Product ID: 30000 Description Description .578X28Designed for Fixed Barrels Related products Sale! Yankee Hill Machine Company NIELSEN PISTON 9MM M13.5X1LH $7495 Original price was: $7495.$7135Current price is: $7135. Gemtech GM9 THREAD REAR MOUNT M18X1RH $9100 Gemtech THREAD PROTECTOR 1/2-28 RF $1800 Sale! SilencerCo BRAVO ANCHOR BRAKE 458CAL BLK $9400 Original price was: $9400.$8606Current price is: $8606.