Unified Mortar Sight MUM is designed to enable sighting 60 mm, 81 mm, 82 mm and 120 mm mortars during direct fire as well as from covered positions. It is also suitable for observing the battlefield. An illumination system of the reticle is included in the sight set, which enables its operation in low visibility conditions (i.e. at dusk or night).

Technical characteristics
Magnification: 2.5 x
Field of view: 9°
Exit pupil distance: 26 mm
Exit pupil diameter: 4 mm
Resolution: 25′′
Diopter adjustment: -0.75 dprt
Range of horizontal sighting: 360°
Angle of inclination in vertical plane: ± 30°
Angle of elevation: 35° to 90°
Power supply sources: Lithium Battery: 3V 1/3N and CR2

Value of the divisions of the angles of the elevation mechanism and the anglemeter:
Coarse scale, artillery thousandths (1/6000): 1 – 00
Precise scale, artillery thousandths (1/6000): 0 – 01
Parallax: 2′′
Operating temperature: -50°C to +50°C
Storing temperature: -55°C to +60°C
Weight: 0.9 kg
Dimensions (LxWxH): 190 х 100 х 108 mm
* MUM can come with custom-made interface, as well as NATO standard (1/6400) or Russian standard (1/6000)