Regarding Armor Tuff and such:
Someone wise dude made good observations in another thread:
What do you really worry about more: rust or wear?
If it is wear (like holster wear), then BLUING is best because you can fix is much more easily and cheaper, and it lasts longer and looks better.
Anyway, I thought I would throw that in. It seems to make sense.
Maybe a blued gun, along with a Sentry Tuff Cloth wiped on the outside, might be a better way to go.
My Glocks' finishes last very well. If we are looking for real tough finishes that WORK, then a Teniffer type would be great, and I have had great luck with hard chrome.
But, sometimes I wonder if regular stainless steel or blue, with some basic maintenaince, is not the best, cheapest, most durable, as well as most attractive way to go.