Build Reference: AR15 Torque Values

Below is a list of torque values as a reference for anyone who is building or intends to build an AR-15

Torque Values:

Compensator (Flash Suppressor) – 15 to 20 Ft. Lbs.

Barrel Nut – 30 Ft. lbs. Minimum, not to exceed 80 Ft. Lbs. to align the next slot in the barrel nut.

Carrier Key Screws – 35 INCH pounds to 40 INCH pounds.

Lower Receiver Extension (Buffer Tube)

  • Rifle – 35 to 39 Ft. Lbs.
  • Carbine – Tighten the locking nut to 40 INCH pounds plus or minus 2 INCH pounds.

 

Source: AR-15.com

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