How to protect a raw barrel

Is there any process available to protect a raw steel revolver barrel..i.e. don't have bluing tanks or access to Cerakote.  Something permanent that would hold up to holster wear etc. If not, may just buy a stainless barrel.

Thanks

Parkerizing is pretty easy, Brownells shows you how to do it on the cheap: https://www.youtube.com/watch?v=yAR48-W7cGE

1. Oil
2. Cold Blue

Do a google search in your area for “black oxide”...almost the same as bluing and is an industrial finish. They usually have a “small lot run” every day. So service is within a few days.

Rust blue. I use Laurel Mountain Barrel Brown and Degreaser. It is the old way of browning/bluing a firearm. After letting the solution work and rust forms, boil the piece in distilled water and the chemical reaction turns it "blue". Time consuming, but works good. Midway has it for $13.00.

Thanks for all of the suggestions...

rust bluing is pretty straight forward.. by far the easiest to use IMHO is Mark Lee's Express blue.

Brownells carries it..