what do you consider an "arm and a leg"??i do not want to but an arm and a leg in a refinish.
http://www.durferrit.de/en/unternehmen/firmengeschichte.htmTo meet the growing needs with regard to wear and corrosion resistance, as well as the enhancement of the fatigue strength, great efforts were devoted to the development and launching of the TENIFER® process, which is also known worldwide under the trade names of TUFFTRIDE® and MELONITE®. This nitrocarburizing process has undergone continuous development with regard to its regenerability and ecology, and from year-to-year the number of applications is increasing on all 5 continents.
http://www.burlingtoneng.com/melonite.htmlMelonite is about as close as we can get to Glock's Tenifer finish (best part of a Glock, IMO) in the USA due to the nasty chemicals used to do Tenifer. Melonite is basically a heat treatment that colors the metal. It actually surface hardens it to a few ten thousandths. Here is some info on the process: