red dot sight is a common classification for a type of non-magnifying reflector (Or Reflex) sight for firearms, and other devices that require aiming, that gives the user a point of aim in the form of an illuminated red dot.

holographic weapon sight or holographic diffraction sight is a non-magnifying gunsight that allows the user to look through a glass optical window and see a holographic reticle image superimposed at a distance on the field of view.

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