This AAC Blackout Flash Hider Installation Tool is an excellent solution for armorers, gunsmiths and/or gun enthusiasts to quickly and easily install or remove any 3-Prong Blackout Flash Hider without marring its finish or damaging the teeth of a quick detach silencer interface when applying the required torque for the job. The tool attaches directly to any 3/8″ Drive Tool and incorporates flats for use with a 3/4″ Socket Wrench (both sold separately).