What kind of sights does yours have? Here's how you can tell http://users.cableaz.com/~mjbvrb/sightid.jpg . If they are phosphor, they should technically glow forever. All you need to do is charge them up with a flashlight or something and they should glow really brightly. Mine do. If they're tritium, then recharging them with a light won't work. They're "burnt out" for good.



