Quote Originally Posted by simon miller View Post
Is there a certain torque spec on the barrel nut?
Yes, a grunt to a grunt and a quarter.

Seriously I don't torque them. If I had to take a WAG I'd say I hand tighten them to maybe 30-50 lbs, I really don't know. I'm not sure I tighten them enough though, none have came yet loose to find out!

Bill