TM 1-1500-204-23-6
ZERO SIGHTS (ZERO COMMANDER'S PERISCOPE TO CALIBER .50 MACHINE GUN) - Continued
40.
Look into passive body eyepiece (AN) rotate RETICLE knob (AP)
until satisfied with reticle brightness.
41.
Rotate TUBE control (AQ) until reticle (AR) is clear.
42.
Rotate diopter ring (AS) until background grain (AT) is clear.
43.
Rotate focus ring (AU) for best focus.
44.
Pull out and turn elevation knob (AV), and deflection knob (AW)
to aline reticle cross (AX) on target right angle (E).
TA252818
Change 1 2-468.1