I apparently missed wiping an area near trigger guard with oily rag last time I was done shooting (it was hot and I was sweating pretty good) . As a result, I got a spot of surface rust that's not easy to remove. The spot is about the size of a thumbnail. What are the best methods to use without damaging color case hardening? Thanks a bunch.
Owning a firearm doesn't make you armed anymore than owning a guitar makes you a musician...words of Jeff Cooper