Buddy of mine is putting a new rail on his AR and needed to change out the barrel nut. His torque wrench goes to 25 ft/lbs max, and he said he got the barrel nut to line up perfectly at 25 ft/lbs. Is this tight enough for the barrel nut? I assume it is impossible for it to come loose because of the gas tube going through it. If it came loose could it bend the gas tube? I have read the barrel nut should be 30-80 ft pounds, is 5 pounds lighter enough to **** things up? Thanks Wanna kill these ads? We can help!