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Red dot crosshair for games overlay8/5/2023 That glass reflects the light from an LED onto it, creating your reticle. This allows you to see your reticle and see through your optic, but someone on the other side of the optic cannot see your reticle. The main advantage of an illuminated red dot over green is acquisition speed it catches the eye faster and therefore means a faster sight picture and target acquisition. This is because red rays of light have a very high wavelength and a small frequency, which strikes your eye faster than green light. They are: mechanical robustness and relative freedom from parallax. Surprisingly, relatively decent optical resolution and brightness is often not a significant difference between cheap and most higher priced sights. Not all such sights are expensive but most cheap ones are not worth their price. If you use the red dot like a front sight, you’re missing the point. One advantage a laser has over conventional irons and red dots is that the shooter doesn’t have to be behind the gun to engage a target. Since red dots and lasers can fail, backup iron sights (BUIS) are critical. The primary culprit was overpowered units. The Code of Federal Regulations in the United States limits commercial class IIIa lasers to 5 milliwatts (mW).
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