Hey good folks of r/guns!
I've got a late model Remington 870 Express. It's primarily a home defense gun. I take it out to my range and have fun with clays and slugs on steel targets at 100m, but I have no interest in fully optimizing this gun for that purpose. I put a Mesa Tactical LEO adapter on it and am in love with this configuration. Unfortunately, as we all know, Remington is building these things to fit a price point and that results in some quality issues. The main one being how easily the barrel and receiver rust. I want to address the rust issue and there are also some upgrades I'd like to do as well. I was hoping you all might have some advice on the most cost efficient way