Manual

ing gas, a small portion of the gas escapes
through the gas port into the gas cylinder,
forcing the operating rod to the rear (fig.
28).
The camming surface inside the re-
cess in the hump of the operating rod
forces the operating lug of the bolt up-
ward, disengaging the locking lugs from
their IXXAXXW in the receiver.
The bolt is
(3)
thus unlocked and ready to be moved to
the rear (fig. 29).
E&raoting. Extracting is pulling the
empty cartridge case from the chamber.
The extractor, which is engaged with the
extracting groove on the cartridge case,
withdraws the empty case as the bolt
moves to the rear (fig. 30).
Figure 84. Po84Non of part8 when the bolt 48 tn it8 rearmost position.
Figure 85. Chamber&g.
Figure 26. Loclcing.
Figure 87. Firing.