There barrel is blued steel and from what I've read the receiver is just painted aluminum. I want to get the whole gun completely flat black, just because I like the way it looks. I was bored tonight so I thought I'd paint my scope rings and mount just to see what it would look like and I'm pretty happy with it. All I did was spray Ultra-Flat Black camouflage paint on it, let it dry for a half hour, and sprayed another layer. It looks fine, but I didn't do any prep work to speak of except wipe off any oil. Scope rings are cheap though and I don't care if they get messed up, but before I just spray down my barrel and receiver I thought I'd check to see if anyone had any advice on this sort of thing. I'm all ears. Here's the scope rings I painted tonight. They look really gray in the picture, but it's very black in real life.