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 PressureCrush washer and Jam nut includedMuzzle end OD : 0.98 inch , Barrel end OD 0.8" Length of the muzzle brake ( with thread ) : 2 3/8 inch 223 Weight: 3.9 OZ308 Weight: 4.4 OZ