1/2"x28 or 5/8"x24 Thread Compact Style Muzzle Brake For .223/5.56 or .308

1/2" x 28 Thread for .223/5.565/8" x 24 Thread for .308 CNC Machined High Quality SteelHeat Treated, Black oxide finish, solid precision machined construction.Competition Muzzle BrakeSide Ported And Ported On TopSolid Machined ConstructionBlack Oxide FinishReduced Back Pressure1/2"x28 Pitch for .223Compact VersionCrush Washer includedMuzzle end OD : 1 inch , Barrel end OD 0.8" Length of the muzzle brake ( with thread ) : 2 3/8 inch Weight: 4 oz