A dot sight, also known as a red dot sight, is an optical device that allows the user to aim a firearm more accurately by superimposing a red dot on the target. Dot sights are often used on handguns, rifles, and shotguns. They are popular for self-defense, target shooting, and hunting.
Dot sights offer a number of advantages over traditional iron sights. First, they are much faster to use, as the user does not need to align the front and rear sights. Second, they are more accurate, as the red dot is easier to see than the small iron sights. Third, they can be used in low-light conditions, as the red dot is still visible even when the target is not.