Ive got one on both the bows that i have. Bebore you buy, make sure it is legal in the states your going to hunt (during archery season). The red dot helps with consistent form, also elimanates peep and kisser, helps alot if you have issues in low light. Love mine. I went with a 42mm, that way i have the whole deer in the scope. I believe most of the red dots are not parallax free, meaning you have to make sure the dot is set up ( at your anchor) in the center of the scope. Inventive tech just came out with a 42mm that i belive has a 3moa dot and crosshair, the one i have has a 5mm dot.