Charlie's loves US made tools that just work. We are not your Ace Hardware Store for gunsmithing tools, but occasionally we find a tool that works, and that is what you find on our Website.
AAC made this socket back in 2016-ish for their Blackout and Breakout flash hiders. Turns out, it works with almost any 3-prong flash hider. Tested on Surefire, Dead Air, Rugged, FN and Slicencerco. I will not work with Sons of Liberty NOX flash hiders. You can insert a 3/8" socket driver, or the exterior has flats for a 3/4" wrench.
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 many 3-prong flash hiders without marring its finish or damaging the teeth of a quick detach silencer interface when applying the required torque for the job. We recommend some painter's masking tape or electrician's black rubber tape, just to be sure.
Note: Is not compatible with SOLGW NOX flash hider
Manufacture's Part Number: 64185
Note: This can be a DIY project, but Charlie's always recommends you use a qualified armorer or gunsmith. As with any firearm, care should be taken to make sure the firearm is not loaded. You are working with the barrel !!
Pictures courtesy of AAC and Suppressor Tools, Limited