Carbon cleaning device for all Surefire flash hiders and brakes in 5.56mm
This is a factory Surefire tool designed to remove carbon build-up from 5.56 muzzle devices: flash hiders, brakes and Surefire Warcomp as well. The ACST may not make your muzzle device fully shin, but properly used, it will remove enough carbon to assure a proper fit to a Surefire suppressor.
