In the area of weaponry, reflex sights are optical devices that are mounted to a gun in front of (or instead of) a classical sight and make aiming easier. They are similar to riflescopes, but they have a source of illumination – a diode that sends a beam of light against the lens with antireflective coating, resulting in an image of a reticle (e.g. a red dot) appearing as if in infinity. Reflex sights allow the viewer to see the entire field of view and a reflection of the projected reticle simultaneously. Meopta reflex sights are compatible with night vision sights and can be used with both day and night magnifying models. They allow quick and accurate aiming, day or night. Their innovative design and advanced vacuum technologies promote precision, reliability and quality in the following area: