Determine which style of receiver you have. The keyhole style receiver does not require removal of the front chain guide when removing operating rod.
6. REMOVE FRONT CHAIN GUIDE.
a. Remove two capscrews (22).
b. Lift front chain guide (15) straight up and out of auto gun receiver (1).
7. REMOVE OPERATING ROD ASSEMBLY.
Lift operating rod assembly (23) up, slide over to slot, and remove from auto gun receiver (1).
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