Here is one past discussion on various rust removal methods:
https://www.doublegunshop.com/forum...ords=Molasses&Search=true#Post486326I am still partial to using a molasses solution to remove rust from gun parts. It is cheap, easy, and does not etch parts. It does not leave a coating as phosphoric acid rust
converters do. You can actually forget about parts, tools, etc., that you leave in your molasses solution for months, and it will not damage them.
Molasses will remove bluing, since bluing is a form of rust. So it is not something to use if you desire to preserve any original finish. But it is one of those things I wish I had learned about when I was much younger.