Item Description *******Instant Credit Card Checkout********* *****FAST & FREE SHIPPING************** 1/2×28 Competition Grade Muzzle Brake, Steel with Black Phosphate Finish – AR-15. Black Phosphate finish, competition grade steel muzzle brake/recoil compensator. Crush washer and Jam nut included. • High quality steel construction with Phosphate finish and CNC machined tech , For: .223, Thread: 1/2″x28• Height:….