05-06-2014, 08:27 PM
I have a Lilja barrel from the group buy and I found a brake I want to install, but it doesn't ship with a crush washer. The threading on the barrel is 5/8"x24, but the barrel dia is .740. So do I get an AR10 crush washer or the AR15 washer? I think I need the AR10 washer, my only concern is that the ID will fit fine, but the OD will be too large. For the record the brake is here, its 1" tapered back to .860. I just want to make sure before I order, even though I think I know the answer.