Install Gas Key on Bolt Carrier

STOP!!

YOU MUST ENSURE YOUR FIREARM IS FULLY UNLOADED AND PROVED SAFE BEFORE USING!!

PROVE
POINT THE FIREARM IN THE SAFEST AVAILABLE DIRECTION.
REMOVE ALL AMMUNITION.
OBSERVE THE CHAMBER.
VERIFY THE FEEDING PATH.
EXAMINE THE BORE.

ONCE SAFE, YOU MAY PROCEED TO THE NEXT STEP.

TOOLS REQUIRED:
9/64 INCH HEX DRIVE [0.1406 INCH]
ADJUSTABLE TORQUE WRENCH SET TO 40-45 INCH POUNDS

STEP 1: REMOVE COMPLETE BOLT CARRIER FROM YOUR RIFLE.
STEP 2: PLACE THE CARRIER IN VISE WITH PADDED JAWS TO PREVENT DAMAGE TO YOUR CARRIER.
STEP 3: ORIENTATE AND PLACE GAS KEY ON TOP OF CARRIER AND LIGHTLY HAND TIGHTEN BOTH #8-32 SOCKET CAP SCREWS.
STEP 4: USING A 9/64 INCH HEX DRIVE ON AN ADJUSTABLE TORQUE WRENCH SET TO 40-45 INCH POUNDS. WE RECOMMEND TIGHTENING UNTIL THE WRENCH CLICKS, THEN LOOSEN AGAIN. THEN RE-TORQUE