Manual

The gas piston, gas cylinder, and other parts covered by the forearm
should be wiped with a very lightly oiled cloth after cleaning. The gas
cylinder interior and the gas piston
SHOULD NOT BE OILED
beyond this.
REASSEMBLY
1 Replace the action
spring, action
spring guide, and
inertia block:
Grasp the action
spring, action
spring guide, and
inertia block and
push the action
spring and guide
forward until it fits
into the gas cylin-
der. (See Figure 15.)
Position the other
end of the action
spring guide into
the recess in the
receiver. (See
Figure 16.)
2 Insert the gas piston
into the front of the
gas cylinder: Make
sure the end of the
gas piston with the
hole goes in first.
(See Figure 17.)
Push the gas piston
rearward so the
end of the action
spring guide fits
20
FIGURE 15
Replace action spring, action spring guide
and inertia back into recess in receiver.
FIGURE 17
Insert gas piston into front of gas cylinder.
FIGURE 16
Position end of action spring guide
into recess in receiver.
98355/BAR OM 8/7/03 10:49 AM Page 20