AR15 Torques & Specs
Compensator (Flash hider) 15-20 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 - 35-40 INCH pounds.
Lower Receiver Extension (Buffer Tube)
Rifle: 35-39 Ft. Lbs.
Carbine: Tighten the castle nut to 40 INCH pounds +/- 2 inch pounds.
Head space information FOR 5.56
New barrel Headspace: GO gauge 1.4636
NO GO guage 1.4696
field/Unsafe barrel Headspace: 1.4730-1.4736"
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