Re: Back up reflex sight
I have the second on a .44 carbine. It works. I went cheap to see if I was going to like it and regret it. The 3's a better device. My understanding is it's easier to adjust, dot size is better, and replacing the battery doesn't require taking it off the gun. If I get another I would spend the money to get a sight with etched glass, or something if the battery dies you aren't done for the day.