What about us home duracoaters w/o mediabalsters?
Sanding can do just as good right?
Be careful with dremels and sand paper. You can do a lot of damage to guns. For example, the tenifer finish on glocks is very durable, but sandpaper will smoke it. Then, it can rust.
I would only consider "refinishing" your guns if they are already really bad. I wouldn't mess with a good finish. Don't fix what is not broken kind of thing.
After blasting, sanding, whatever, be sure to wash it down with mineral spirits, and keep off body oil. I.E. finger grease.