I have coated a few dozen rifles and shotguns with it. It is pretty dang durable but not invincible. That being said neither is ceracoat I can prove it lol. The only gun I have coated that I had any real problems to speak of was a rem 870 shotgun that lives in a leather scabboard on a horse, this is one of the worst things to put a firearm in as it is always moving and the chemicals used in the treating of the leather also attack the finish. It goes on easy, pretty much the same as any other paint, just make sure you follow the instructions and use lint free rags when wiping down.