tactical 308 7.62 steel muzzle brake 5/8x24 tpi compensator with 13/16x16 outer sleeve aluminium7075

finish: black nitride dimension of brake: 2.38 in x 1.0in 2.44oz dimension of sleeve: 2.30 in x 1.36in 2.29 oz total weight:4.73 oz package includes: 1 x steel muzzle brake 1 x 7075 aluminium blast shield 1 x crush washer(stainless) 1 x timing nut(stainless)