Crush washer on my upper won't stay centered when I tighten the flash hider, any ideas?
edit: as an aside, the flash hider was very easy to unscrew. Much easier than others I've had, I did it by hand without a vise/action block and I am a wimp.
edit: as an aside, the flash hider was very easy to unscrew. Much easier than others I've had, I did it by hand without a vise/action block and I am a wimp.
