Make a note of how far you move the sights so they can be returned to their original position at completion of this task.
MOVING PARTS. Use one or two drops of CLP. Rotate these parts (see page 33) to ensure lubricant is spread evenly above and below:
a. Elevation knob b. Elevation screw shaft c. Windage knob (maximum five clicks left or right)
d. Windage screw e. Detent holes
ELEVATION SCREW SHAFT. Also lube from inside the upper receiver as follows:
a. Turn upper receiver upside down.
b. Remove charging handle.
c. Put two or three drops on bottom of elevation screw shaft and in elevation detent spring hole.
d. Rotate the elevation dial back and forth a few times while keeping upper receiver upside down.
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