flash hider wrench flat sizes?

AR/M4 AR General Discussion
1

I move this from the beyond 5.56 section, as i realized that it doesn’t only apply to guys with .308 AR rifles.

what wrench flat sizes do your flash hiders have other than 3/4"? i’m trying to find out what the most common size is other than the standard 3/4".
for example, the AAC blackout has .825" flats. i think some surefire brakes/suppressor mounts have non-standard flat sizes too.

if you could pop in with the make/model of hider/brake and the flat wrench size, i’d appreciate it.
thanks in advance!

2

Armalite AR10A4B (P/N 10108200KIT - A2 flash suppressor) uses a .750 flat.

3

I have an Armalite A2 and IIRC it went on with the same DPMS wrench I use on my 5.56 guns. Because it worked and I didn’t need another tool, I didn’t have a need to measure it. :smiley:

4

thanks for the replies. anyone have flat dimensions other than .75"?

5

bump from a few days ago - moved it from a different section.