The sight provides direct fire targeting when shooting from the tank anti-aircraft mount. It is an optical monocular periscope sight with rotating prism, electrically heated windows, and illuminated sight grid.

• Zoom: 1.2 times

• Field of view: 50 degrees

• Exit pupil diameter: 5 mm

• Distance of the exit pupil from the outside of the last ocular lens: 23 mm

• Threshold of resolution in the central third of the optical system's field of view: not more than 60″

• Transmittance factor: not less than 0.2

• Periscope line-of-sight height: 220 mm

• Ocular diopter setting: from -4 diopter to +4 diopter

• Sighting in the range of: from -10 degrees to +85 degrees

• Horizontal internal zeroing from the zero point: ±(00 – 25) mils

• Guaranteed service life: not less than 500 hours