01-29-2014, 02:54 PM
Good advice, I had been using a gas tube as my alignment tool. Just looking at Brownells and saw the barrel nut alignment tool. Now that is a good way to double check the alignment for your gas tube to bolt carrier gas key. Can't beat it for 5 bucks.
http://www.brownells.com/gunsmith-tools-...26480.aspx
http://www.brownells.com/gunsmith-tools-...26480.aspx
