User Manual

gas piston may require forcefully moving
the gas piston forward with a hammer
and drive punch, and extreme care must
be used to avoid scoring parts. If the gas
piston will not move with moderate force,
place a couple of drops of nitro
- solvent
around the gas piston, wait about 15
minutes, and then try to push the piston
out with the drive punch. If the piston still
will not move, put more nitrosolvent on
the piston and allow it to set overnight
before attempting to remove the piston.
Remove the inertia block, action springs,
and action spring guide: Tightly grip by
hand the rear portion of the action and
action spring guide and pull forward
toward gas cylinder until the action spring
guide is clear of its recess in the receiver.
The rear end of the action spring guide
can then be moved to one side of the
receiver and then rearward to remove the
action spring, action spring guide, and
inertia block. (See Figure 12)
The gas cylinder can now be examined for
accumulations of residue. Residues in the
gas cylinder and on the gas piston should
be thoroughly removed with a good
quality powder solvent or bore cleaner. If
residues are heavy, they can be removed
by scrubbing the gas cylinder with a 20
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