Comstock Armory Full Size Muzzle Brake .308 Winchester 5/8x24 Black Nitride Black. 900"-24 adapters like the Comstock LPA Q Plan-B and Rearden Atlas. The MBL greatly reduces recoil and blast baffle wear and unlike most brakes out there it does not need to be timed with shims. Specifications for Comstock Armory Full Size Muzzle Brake: Manufacturer: Comstock Armory Color: Black Finish: Black Nitride Fabric/Material: Stainless Steel Gun Make: Universal Features of Comstock Armory Full Size Muzzle Brake Allows for the quick attachment and removal of suppressors Significantly reduces blast baffle wear; acts as a sacrificial baffle Effectively reduces recoil High strength 17-4 PH stainless steel Durable black nitride finish Rotationally symmetric and does not need to be timed with shims Package Contents: Comstock Armory Full Size Muzzle Brake Comstock Armory MBL-58-30: Full Size Muzzle Brake .308 Winchester 5/8x24 Black Nitride Black