Electronic sights are of three types; laser, holographic and reflex sights. These are also called the red dots. These red dots were developed many decades ago so that they can be used in places where the light is dim. Even when you Buy this low cost red dot, you will get a better view of the target and the surroundings. The electronic sights are fast and thus reaches the target quickly and even useful on moving targets. Due to which it is useful for a variety of purposes like hunting, self-defense, shooting competitions or even in the military.
Why do you need red dots?
The red dots are called electronic sights too, and the irony is that the dots are not red and is not a simple dot either. So a red dot is a sight for your gun, and it uses a holographic red dot. There are no scopes and has to be used along with your iron sights. When you use iron sights, there has to be perfect alignment of the iron sight front and rear, target and the eye. The aiming focus of your eye should not be the target but the front sight. The problem with this approach is that it is easy to lose sight of the target when you are nervous and since you have one eye on the iron sight and the other eye closed. The target and the surroundings are not very clear.
Due to the disadvantages mentioned in the review above, you should use reflex sight or holographic sight. There is no need for your eye to be perfectly aligned to the sight axis and there is no stress on your eye by using the aiming dot. There is no need to have one of your eyes focused on the front sight as the target and the dot are on the same plane. You can use both your eyes on the target and its surroundings. The focus on the target is also fast, and you are more aware of the environment around you.
Types of electronic sights:
Laser sights: It is a laser pointer that can withstand the recoil and can zero the laser with the weapon. The distance of the target greatly affects the visibility, and so does the reflection, brightness and climatic conditions like dust, smoke, rain, etc. So a laser light has to be powerful, but there are restrictions on the power limit. One of the advantages of a laser is that it can be used as a pointer to point to objects.
Reflex sights: Also known as the red dots is a tube with no magnification, and all the components are inside that tube. Due to all the parts sitting inside they are usually sturdy. The lenses are recessed so that they do not get scratched. The only drawback is that the range of angles is limited.
Holographic sights: The components are bundled in a base with a frame that sticks up. These sights have a better view due to its larger glass and use it at angles. The disadvantage of holographic sights is that the components are not sturdy.