A. Insert the lever cylinder into the rear sight drum with the two spring actuated levers projecting into the two slots, located on the inside of the sight drum, that have the spring detents in them.
(There are a total of four slots, but only two with spring detents.)
Do not allow the lever cylinder to rock back and fourth inside the rear sight cylinder during your adjustment.
B. Holding lever cylinder in place slowly and carefully insert the phillips head screwdriver into the top of the lever cylinder until it is fully inside.
At this point the levers in the lever cylinder should be depressed inward and should be compressing the spring detents in the rear sight drum.
C. Holding the sight adjustment tool in place you should be able to easily rotate the rear sight drum independently of the rest of the sight adjustment tool.
If any part of the sight adjustment tool rotates with the rear sight cylinder as it is turned or the rear sight cylinder cannot be rotated, remove just the phillips head screwdriver from the lever cylinder and start at step B above.
D. Once the rear sight cylinder is free to rotate independently each movement of the drum is changing the elevation adjustment of the rear sight.
* Once the elevation adjustment is made and the sight adjustment tool is removed from the rear sight the spring detents will snap back into place as the operator selects their preferred aperture.
** Direction of Elevation Adjustment
Rotating the rear sight drum clockwise as viewed from the top of the weapon moves the impact of the projectiles down on target. Counterclockwise rotation moves the impact of the projectiles up the target. One complete revolution moves the point of impact 2.25" (56mm) at a range of 25 meters.
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