Thanks T-DOGG, I'll try again with an o-ring. I wondered why an o-ring didn't come with the comp and washer.
For the front sight, how did you remove the set screw? I tried heating the thread locker, a left handed 1.5mm drill bit, and an extractor like other people have said in other forums...
@T-DOGG
So the crush washer faces inward? When I did it that way, the comp couldn't complete installing it with the ports pointed upward (12 o'clock). It would stop turning with the ports pointed at 10 o'clock.
I searched YouTube for videos on how to install a muzzle break with a crush...