Manual

3. Install the gas tube:

Slip the gas tube (flange notch pointing downwards)
through the bore of the foresight mount and insert the
end into the corresponding opening in the receiver;

Press the gas tube against the foresight mount and turn
it through 90
o
to the right so that the retention stud of
the gas valve registers in the flange;
4. Insert the piston with the recoil spring:

Insert the piston, with its retention notch slide facing
against the barrel, into the gas tube;

Check with forefinger that the gas piston moves freely in
the tube;
Check correct position with index
finger
Correct position of retention
notch
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