Aries MK350 visor
The ATN Aries MK350 Guardian is the most compact and affordable Gen 1 weapon visor that you can get on the market today. It is equipped with complete Gen 1 technology and packed in a solid compact body. The advanced ATN "Red on Green' visor system gives an accuracy to this rifle scope that to this day has not been matched. The 7.3mm click value is at least impressive. The above-mentioned precision characteristics combined with other components of the viewer such as the super fast Front Lens System for optimum brightness, easy-to-use push button operation, adjustable brightness cross visor and powerful removable infrared beamer make this visor a popular, affordable and excellent model!
MOA or Click Value
The vertical height adjustment ensures that the target in the viewer coincides with the spot where the bullet strikes. The flight of the bullet is affected by gravity in an arc orbit effect, the rifle scope follows a straight line. To compensate for this effect, the viewer has a turning wheel for adjusting the height. Usually, the viewer is set to a certain distance, e.g. 25m. The adjustment wheel goes with clicks, so the adjustment per click is indicated as click value. The movement of the target point caused by one click of the dial is expressed in minutes (of degrees). A minute is 1/60th of a degree. In English this is called "Minute of Angle" or MOA. On a viewer it is often indicated what one click means for that specific model: 1/4 MOA, 1/8 MOA, so 1/240th or 1/480th of a degree.
Calculating the Click Value
The distance to your goal is the radius of a vertical circle. For a distance of 10m, the circumference of a circle 628 m (2 x pi x r). One degree displacement is 628:360 = 1.74 m, one minute is 1.74:60 = 0.029m or 2.9cm. Divide this number by the amount of MOA, e.g. 1/4, and you have the vertical displacement of the target per click.
Specifications

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| General | ||
|---|---|---|
| Type | telescopic sight | |
| Brand | ATN | |
| Guarantee | 2 years | |
| Colour | black | |
| Waterproof | ![]() | |
| Compass | ![]() | |
| Dimensions | 10,8268×4,1339×3,2677″ | |
| Suitable for eyeglass wearers | ![]() | |
| Dimensions & Weight | ||
| Weight | 1270 gram | |
| Optics | ||
| Lens diameter | 90 mm | |
| Magnification | 2,5× | |
| Exit pupil | 36 mm | |
| Minimum focus distance | 4 m | |
| Twilight factor | 15 | |
| Light intensity | 1296 | |
| Lens coating | Multi-coated (MC) | |
| Actual field of view | 15° | |
| Click value @100m | 7,3 mm | |