My son and i are building an old Mauser 98 action I had laying around and I just got it back from the smith today and have a question. The barrel I got is "in the white". Now that I have it back it looks bad a$$ with the shiny barrel and blued action is there something I can coat the barrel with to prevent rust or do Shoul I have it blued. I live in AZ so humidity isn't a huge problem but I don't want it to rust either. If I need to blue it is there a descent option other than sending back to a smith that I can do at home?