Hello about a month ago I bought a S&W 586 4 inch 357. This revolver has a "black shiny matte finish" my question is this is it stainless or carbon steel? I know S&W made a "blacken stainless" a few years back. I want to know if this is one of them. I also noticed that it has a chrome lined barrel. I tried to find the info at the S&W's website but to no avail. I will email them if no one on this forum can help me.