I have an old aimpoint 5000XD that started giving me issues on Saturday.

I've had it for 10 years, it came with a rifle I bought. A few years ago the battery finally died and because I don't use that rifle often it has sat since then. This weekend I wanted to take the rifle to a class and went and bought a new battery.

It works but needs to be smacked to work. The dot disappears until you smack the side where the battery is. Also on the highest setting there is a red glow in the outer circumference of the glass. If smacked a few times the glow disappears.

Also, I did remove the original battery when it died so it did not sit inside deteriorating