Believe me when someone mentions 4/0 steel wool and either kroil or break free to clean rust off a firearm I know exactly what he is talking about. Bought one of the police turn in rem 870 12 guage shotguns. This thing had rust every where. disassemblled the shotgun and went to work. In about an hours time you would not believe its the same shotgun. Rust was on the receiver, mag tube, mag tube extension and all over the bbl.Well I'm here to tell you it ain't there anymore. Its been wiped down with a fine cloth sprayed with some oil. I still get some rust color on the rag but gets less each time. I squirt the oil on and rub the steel wool in a circular motion. Could not believe how much rust was getting removed. There are a few pits but for $210 before taxes I'm not the one to complain. Ok yeah the wood needs sanding and refinishing no biggie so bring on the zombies. Frank