Help! Barrel nut goes 1/4 turn past the gas tube hole

[Bill Hollinger]

Finger tight means nothing. Torque it to spec a few times and back it off as Jim stated and go from there. The torque is 30 to 80 ft pounds. I take it to 60 and see where it is. 30 to 80 leaves an awful lot of wiggle room. The gas tube notch WILL line up in that range. Use moly lube or anti-seize on the threads as discussed in the other thread.