Used on howitzer, light, self-propelled: 105MM, M108 and howitzer, medium, self-propelled:155MM, M109.

< SPECIFICATION >
Length 9 inch
Width 8^1/4 inch
Height 20 inch
Weight 14 lb 6 oz
Power 4 x
Field of View 10°
Exit Pupil Diameter 0.165 inch
Effective Focal Length
   Objective 4.004 inch
   Eyepiece 1.250 inch
Clear Eye Distance 0.700 inch
Deflection(Azimuth) 6400 mils
Elevation ±300 mils