The adjuster knobs on the DBAL-I
2
may vary slightly in the force required to
turn the adjusters. This is normal and does not indicate a failure condition.
At the maximum CW or CCW travel the DBAL-I
2
lasers may not move a full 1 cm
per click, or may jump squares on the target. If this happens the DBAL-I
2
should be returned to its factory neutral preset as described in Paragraph 3.5.
DBAL-I
2
is for use on weapons where the MIL-STD-1913 rail is parallel with the
bore of the weapon. In the factory neutral position the IR POINT should project
on the same side of the target as the laser is mounted and must fall within 15
cm of the bore at 25 meters. See Paragraph 3.5.
This procedure is used to zero the DBAL-I
2
to the following weapons for the
distances listed in Table 3-5. Refer to Table 3-2 and Table 3-3 for adjuster
rotation and direction of shot group movement. Each adjuster click moves the
strike point by approximately 1 cm on the M16A2/M16A4 25-meter zeroing
target.
1. On a 25-meter zeroing target (Figure 3-20), mark the designated strike point
and designated 4 cm/6 cm strike zone based on the weapon you are using.
2. Mount the target on an “E” silhouette or other suitable surface at 25 meters.
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