Originally Posted By CAR-AR-M16:
I have a barrel nut that I am trying to loosen and it is being very stubborn. I have tried putting the barrel/upper in the freezer and tried getting some oil down into the threads, but nothing is working. I have already stripped a few teeth and am afraid to lose any more. Any suggestions?
I'm assuming you are clamping it and there are no problems that way.
The largest issue I've found when working on my various carbines is that the barrel nut and wrench tend to slip off each other. Having one person press down hard to keep the wrench locked into the teeth, and the second person using a cheater bar to max leverage, I've always been able to pop them off without trouble.
If you aren't using an extension off the basic barrel nut wrench for leverage, you are making things harder on yourself.