Precision Armament EFAB Hybrid Muzzle Brake 5/8-24 and 1/2-28

Combines superior muzzle control with effective flash suppression even on barrels as short as 10 inches. Patent Pending EFAB technology uses an innovative configuration of diverging expansion nozzles to both diffuse and cool combustion gases resulting in maximum recoil reduction with minimum concussion to the rear and sides of the shooter. Closed bottom reduces dust signature when shooting prone. Precision machined from heat treated stainless steel with an advanced IonbondA(R) high temperature CrCN coating for extreme durability. Features pilot hole for permanent pinning to bring 14.5 barrels to legal length. Fits: .308/7.62mm with 5/8-24 threads. .223/5.56mm with 1/2-28 muzzle threads Accu-Washer(TM) Muzzle Alignment System required for installation (not included). Please NOTE: Do not use crush washers with this product.