Sure you can . . . you can actually have the same process done to your slide as S&W uses on the AF model. It is Melonite, a thermochemical process, ferritic nitrocarburizing. Several gunshops/smiths, heat treaters, and custom plating/coating shops can do this for you.

Take a look at:
http://www.coalcreekarmory.com/custo....html#Melonite

A black Duracoat or similar coating would be a lot less expensive, I think.