Originally Posted by TCLP
Or you can take the grub screw out of the bottom of the flash hider, use the wrench that comes with the gun. Turn the wrench clockwise. It will take some force as it is secured by plumbers pipe dope, but it will come off. Just use a little bit of the old fashioned elbow grease.
Sweet, finally got it off. Now there are paint scratches on the flash hider where the wrench was ><