my dad has a bunch of old guns. he got out of the hobby about 20 years ago, and they have been sitting in the attic the whole time. I know he has 1 or 2 handguns, double barrel shotgun, .22 rifle, and a couple of others. He told me that the slide wont even move on the handgun, I don't think he forced it, but obviously it doesn't move freely. All the guns are rusty/etc. What should I get to redo these guns? Are there online manuals on how to tear down the guns to clean them fully? What kind of cleaning stuff do I need to buy to bring them back to their glory? All I have right now is some break-free that I use on my pretty new remington shotgun(my only gun at the moment). Dads pretty depressed that he let the guns get this way, I really want to clean them up so he doesn't feel as bad, and plus I'm pretty sure he is going to give them to me, so my collection will grow! thanks!