Hello!
Are crush washer necessary for flash hiders? Why is there a crush washer on every AR? Is just to line up the Flash hider/Muzzle brake? Or does it serve a special purpose?
Stephen Answered question July 3, 2022
Generally, a crush washer is not needed for a flash hider. However, there are some specific instances in which a crush washer may be necessary. For example, if you are using an A2 flash hider on a barrel that has been cut down past the barrel’s shoulder, then you will need to use a crush washer to properly index the A2 flash hider.
Matthew Answered question July 3, 2022