1PZ-3 is a daylight aiming device used when shooting from cannon 2A42, PKT (Kalashnikov tank machine gun), Vladimirov KPVT heavy machine gun. The aiming device performs:

• air surveillance and searches the air

• air tracking and 2A42 targeting when firing from a stationary position

• ground tracking and 2A42 and PKT targeting when firing from a stationary position

• Zoom of the aiming device: 1.2 - 4 times

• Field of view of the aiming device: 49 - 14 degrees

• Exit pupil diameter: 5.4 - 3.6 mm

• Distance of the exit pupil from the outside of the last ocular lens: not less than 26 mm

• Threshold of resolution in the central third of the optical system's field of view: not more than 50 - 20 ″

• Transmittance factor: not less than 0.2

• Periscope line-of-sight height: 300 mm

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

• Sighting in the range of: from -10 degrees to +81 degrees

• Horizontal internal zeroing from the zero point,: ±(0 – 10) mils

• Guaranteed service life: 500 hours