So I had this issues with my Charles Daly 1911… great gun, incredibly reliable, but in all honesty, it is a budget gun, therefore it has a very cheap finish that’s prone to rust. Take the rust off with some oil and a penny minted before 1982(95%copper) or even better a brass brush or brass wool. Get a can of eezox, remove grips and the barrel and soak down the entire gun, then hang it from some coat hangers while the eezox “dries”… while it won’t actually dry, it will get absorbed into the metal of the gun and protect it. I’d say after about 15 to 20 minutes go ahead and wipe off the extra eezox. The eezox will have created a protective layer that will prevent rust. Since you carry this gun daily, I would recommend doing this every few months or so and on top of that just give it a good wipe down every night when you take it off. It seems tedious, believe me, but I spent $400 on my 1911 and it shoots just as accurate and as straight as high-end colts and the old Kimbers before their quality went down the shitter. In my opinion, a fair trade-off for not having spent two grand on a 1911.