It is a MICRO red DOT. seriously small dot. On low setting the dot is virtually invisible. The dot is so small i had to look hard to see it. I WOULD NOT recommend it as a fast acquire sight.
Strong light and it disappeared.
Too small a dot to be really practical.
When i opened the box, I thought, looks good, well machined base, fits the weaver rail perfect unlike a lot of Chinese rings etc...
And then i turned on the optics.. And all i can say what a piece of JUNK. The optics distort into one long line on the front lens as soon as you level it.... Nothing i could do would would fix it...