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Red dot, holography, white light... How many optical sights are used on firearms?

Optical sights used on firearms are generally divided into the following categories. Vision sight:

Night vision device - see the night clearly

Night vision goggles, that is, night vision devices, are used to enhance people's eyesight in extremely low light conditions.

What are the components of the infrared night vision device? What are the advantages?

Infrared night vision device is a device that can observe targets at night.