Quote Originally Posted by mrkalashnikov View Post
This stuff is hands down the best product I've ever found for removing surface rust from metal gun parts or bores & it's not as toxic as many other metal cleaners. It will not harm bluing as well: http://www.bluewonder.us/BlueWonderGunCleaner.html
Since bluing is an oxidation process, I wonder how this stuff can remove rust, but not bluing?

For light surface rust, I feel safer with a rough piece of flannel cloth and oil (plus a lot of elbow grease). For pitting, I would simply kick myself in the ass for letting it happen in the first place.