a red dot alone is easily good to 50, with a magnifier, 100 yards isn't bad. Get good QD mounts if you're going that way, at least for the scope. On the red dots, you're a little more "stuck" with whats on the red dot unless you get into the high dollar stuff. There are a bunch of different worthwhile QD mounts, my preference is the Warne Optima series, as they work well, return to 0 perfectly, and can be had in the $50-$75 range.