Rock River Arms .458 Beast Muzzle Brake Black. 458 Beast Muzzle Brake was created to be the ideally suited item for anybody in need of an outstanding choice.. These Muzzle Brakes & Compensators through the professional product experts at Rock River Arms are made working with dependable and efficient components as a way to provide you with a product that is going to be powerful for a long time. Manufactured utilizing some of the very best available materials and engineering these particular Muzzle Brakes & Compensators from the product specialists at Rock River Arms will last you an unbelievably long time. Rock River Arms has been developing superior quality merchandise for a very long time and the Rock River Arms .458 Beast Muzzle Brake is their particular approach to demonstrating how much they are concerned. Here at OpticsPlanet we make it our responsibility to obtain the best product for your requirements and exhibiting the Rock River Arms .458 Beast Muzzle Brake is a thing that we're happy to offer. Specifications for Rock River Arms .458 Beast Muzzle Brake: Manufacturer: Rock River Arms Color: Black Projectile Caliber: .458 Caliber Threads per Inch: 5/8x32 Length: 3.9 in Weight: 7.9 oz Package Contents: Rock River Arms .458 Beast Muzzle Brake Rock River Arms SOC0117B: .458 Beast Muzzle Brake Black