Hi Guys, I have a couple of older guns that have small rust spots on them, they were there when I bought them. My question is how do you remove these small spots or do you just keep them oiled because they are small? I don't want to get aggressive with steel wool or anything like that because the spots are small and I don't want to lighten the surrounding bluing. If you just remove the loose rust and take care of the gun it shouldn't get worse, or will it? Thanks!