Specifications:- Sight Unit, Cased, 102 B Used with 120 MM Brandt Mortar, 81 mm Mortar, 7.62 mm (MAG) Machine-Gun and Gun Machine 0.5" for indirect & direct firing.

Optical Charactersitics:-
Magnification : 3X
Field of View : 12º 12'
Axial transmission : 60%
Parrallax : Nil
Graticule : Centre Laying Type
Erector : Prismatic Type

Mechanical Characterstics:-

Azimuth angle : 0 to 360º
Elevation angle : 40º to 80º
Azimuth gear accuracy : 6'
Elevation gear accuracy : 8'