Over torqued barrel nut

[ryu_sekai]

Was installing my NSR rail and I think I may have over torqued my barrel nut. Is there any way to tell if I did?

I tightened it PRETTY hard and had a REALLY Really hard time getting it loose. I checked the threads but did not see any damage.

[AKDoug]

I take it you didn't use a torque wrench? That is how you tell if you used the proper torque.

Torque to 30 ft/lbs, loosen. Do this twice. Torque to 30 lbs for the third time and continue tightening until gas tube is aligned without exceeding 80 ft/lbs. Use moly grease on the threads.

[ryu_sekai]

I take it you didn't use a torque wrench? That is how you tell if you used the proper torque.

Torque to 30 ft/lbs, loosen. Do this twice. Torque to 30 lbs for the third time and continue tightening until gas tube is aligned without exceeding 80 ft/lbs.

no torque wrench.

Its a NSR block, did not have to align tube.

[AKDoug]

Reading comprehension issue on my part. Missed the NSR..

You still need a torque wrench to do it properly. http://noveskerifleworks.com/impdf/n...guard_inst.pdf

[ryu_sekai]

Reading comprehension issue on my part. Missed the NSR..

You still need a torque wrench to do it properly. http://noveskerifleworks.com/impdf/n...guard_inst.pdf

OK. But my question is, how can you tell if there is damage and what will happen if its over torqued and then torqued to correct in pounds.

[Heavy Metal]

Did you Moly Grease the threads first to prevent galling and striping of the Aluminum by the Steel??