Starting new build...need a suggestion

[Slippers]

What's the problem with the NSR barrel nut?

It's a pain to time it, as compared to a rail system like the BCM KMR or Geissele SMR where you torque the nut to a specific value, and it doesn't matter where it stops. The NSR has to be timed so the screws that secure the handguard to it are lined up at precision the 3/6/9 o'clock. Sometimes this takes up to 80-90 ft. lbs. of torque.

[SINNER]

It's a challenge for the slow kids. LOL The design requires the nut to be timed, complicating the install.

[n4p226r]

It's a pain to time it, as compared to a rail system like the BCM KMR or Geissele SMR where you torque the nut to a specific value, and it doesn't matter where it stops. The NSR has to be timed so the screws that secure the handguard to it are lined up at precision the 3/6/9 o'clock. Sometimes this takes up to 80-90 ft. lbs. of torque.

Ah. I had purchased a shim kit from g&r when I did mine so I didn't have to over torque it. My second one lined up perfectly around 40 ft lbs