ADJUSTING LENGTH OF PULL
The GraCoil system on your BT-99 shotgun also allows up to 1" of
length of pull adjustment. To adjust the GraCoil system for length of
pull, perform the following:
BEFORE PERFORMING ANY ADJUSTMENTS, ALWAYS MAKE CERTAIN THERE
IS NO SHELL IN THE CHAMBER.
1 With a
7
⁄64
" Allen wrench, loosen the two set screws on the right
side of the stock plate by turning them counterclockwise one turn
(Figure 21).
2 Loosen the butt plate by inserting a
3
⁄32"
Allen wrench into the single hole on the
right side of the butt plate and turn the set
screw counterclockwise two turns to
loosen the screw (Figure 19).
3 With your fingers, turn the large, threaded
center shaft clockwise to decrease the
length of pull and counterclockwise to
increase length of pull (Figure 22). Do not use a wrench or pliers to
turn the center shaft. Damage to the shaft will occur.
4 LENGTH OF PULL ADJUSTMENT IS A MATTER OF TRIAL AND
ERROR. Adjust in small increments until desired length of pull has
been reached.
5 When the desired length of pull has been achieved, tighten the two
set screws on the stock plate using the
7
⁄
64"
Allen wrench and single set screw on butt
plate using the
3
⁄
32" Allen wrench. Do not
over tighten the set screws.
6 It is possible that the settings on the recoil
reduction unit of your shotgun may have
changed after adjusting the length of pull.
Before firing your shotgun, check to make
sure your settings have not changed. If
22
FIGURE 21
FIGURE 22
02-260-BFA_Revised BT99 OM 8/11/03 11:48 AM Page 22
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