Cycle Of Functioning

The cycle of functioning is broken down into basic steps: feeding, cambering, locking, firing, unlocking, extracting, ejecting, and cocking. Some of these steps may occur at the same time.

a. Feeding. Feeding is the act of placing a cartridge in the receiver, approximately in back of the barrel, ready for cambering. When the bolt is fully forward and the top is closed, the ammunition belt is held in the feedway by the belt-holding pawl (Figure 3-5)._

(1) As the bolt is moved to the rear, the belted ammunition is moved over and then held in a stationary position by the belt-holding pawl. At the same time, the belt-feed pawl rides up and over the link, holding the first round in place. When the bolt is all the way to the rear, the belt-feed slide moves out far enough to allow the belt-feed pawl spring to force the pawl up between the first and second rounds (Figure 3-6)._

BELT FEED PAWL

BELT FEED SLIDE

BELT FEED PAWL

BELT FEED SLIDE

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