Manual

ADJUSTING THE LOCKING NUT
IMPORTANT: IN THE EVENT THAT THE BARREL
ASSEMBLY ROTATES TOO FAR OR NOT FAR
ENOUGH USING A REASONABLE AMOUNT OF
FORCE, CAUSING THE LOCKING LEVER NOT TO
CLOSE, THE LOCKING NUT MAY REQUIRE
ADJUSTMENT.
This procedure should only be done if your rifle has gone out of
adjustment. A special spanner wrench has been supplied with your
rifle. You can determine if your rifle’s barrel attachment system is
“out of adjustment” by checking for and performing the following:
Barrel assembly rotates too far —
If after inserting the barrel and then turning it to tighten, the barrel
goes past the correct position (and the locking pin will not engage
the recess on the receiver) then you must tighten the adjusting
locking nut. Turn the locking nut counterclockwise (when viewed
from the chamber end) using the spanner wrench (refer to Figure 5).
This will be an extremely small adjustment which requires trial and
error to do correctly. If you inadvertently turn it too far, and the
barrel will not rotate enough to close properly, you must loosen the
adjusting nut as explained below.
Barrel does not rotate far enough —
If upon rotating the barrel threads into the matching threads in the
receiver, the barrel will not rotate far enough for the locking pin to
engage you must turn the locking nut clockwise (when viewed from
the chamber end) using the spanner wrench (refer to Figure 5).
Adjust the locking nut until the locking pin lines up perfectly with
the matching recess on the receiver plate.
IMPORTANT: THE LOCKING NUT IS NOT TO BE
USED FOR SETTING HEADSPACE. YOUR RIFLE HAS
CORRECT HEADSPACE SET AT THE FACTORY. THE
FUNCTION OF THE LOCKING NUT IS MERELY TO
COMPENSATE FOR THREAD WEAR AS THE BARREL
ASSEMBLY IS REMOVED AND REINSTALLED INTO
THE RECEIVER OVER TIME.
7
Adjusting the
locking nut
Turn counter clockwise
if the barrel turns to far
Turn clockwise if
the barrel will not
turn far enough
FIGURE 5
(Viewed from
the chamber
end of the
barrel. )