Barrel Nut Torque Specifications:
- M5E1 Barrel Nut: 65 ft. lbs (AR15 Mil-Spec Barrel Nut Wrench)
- ATLAS Barrel Nut: 35-65 ft. lbs (AR15 Mil-Spec Barren Nut Wrench)
Screw Torque Specifications:
- Gas Block set screws: 40 in lbs. (3/32 Allen Key) (thread locker will void warranty)
- M5 Enhanced Gen 2 hand guard screws: 25 in lbs. (Torx T15)
- ATLAS Taper Lock: Tighten until snug (Torx T15)
- Pistol grip screw: Tighten until snug
Other Torque Specs:
- Castle Nut: 40 ft. lbs.
- VG6/A2 Muzzle device (excluding suppressor mounts): tighten until timed with crush washer, do not exceed 1 full rotation.