Worked perfectly
Worked perfectly on my barrel. I did find, after using many of these crush washers, to not over-tighten the muzzle device as the crush washer will crush so much that when disassembling it the crush washer doesnt come off easily. One time I had to use a vise grip to unscrew the crush washer because it flattened so much it couldnt just be pulled over the threaded portion of the barrel muzzle. Otherwise, its a very good part and works as designed.
