Within the framework of the "Vzlomshchik" R&D project, the 6S7 and 6S8 sniper systems were developed. L e. the weapon was developed and tested concurrently with its cartridge and sight. An optimum relationship between the firing range, observer-target ranges convenience of aiming and a lot of component parts of the systems was practiced to perfection. As a result, sniper rifles equipped with the 1PN101 and 1PN111 night vision sights passed the state tests to satisfaction.
— 1PN101 for the 9-rnm SVDK sniper rifle as part of the 6S7 sniper system;
— 1PN111 for the 12.7-mm ASVK sniper rifle as part of the 6S8 sniper system.
The main differences between the 1PN101 and 1PN111 sights are in the values of the sighting angles on the reticles and in the weapon mounting brackets.
— Gen 3 IITs:
— increased, compared to 1PN93-4, recognition range;
— smooth control of the reticle brightness;
— automatic protection against flares;
— there are two reticles: one provides for the sight boresighting on a weapon, and the other one for setting sighting angles;
— the sights come complete with a boresighting tube, a device for determination of the state-of-charge of the batteries and with a battery charger;
— availability of individual, group and repair SPTA sets.
Chief Designer: A. S. Kandaurov.
Developed by: Tochpribor Central Design Bureau, Novosibirsk.
Manufactured by: NPZ Optics State Plant.
Apparent magnification factor: 4.7 / 4.7
Angular field of view, deg (meters at 100 m): 7.5 (13) / 7.5 (13)
Man recognition range by night at the levei of natural night light exposure of (3-5)x10³ lx, m: 600 / 600
Eye relief, mm: 75 / 75
— elevation adjustment: 0-08 / 0-08
— halving adjustment: 0-08 / 0-08
Range of setting of sighting angles:
— in elevation: 0-08 (up); 0-18 (down) / 0-08 (up); 0-12 (down)
— in train: 0-08 / 0-08
Power supply voltage, V: 2.0-3.2 / 2.0-3.2
Current consumption, mA, maximum: 50 / 50
Dimensions, mm: 425х116х205 / 425х116х140
Weight, kg: 3.0 / 3.0