It was requested a good Golden gun was modeled, so I tried my best.
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You like the Blender render better?
Well cleary not the blender render has no lighting nor colors.Add colors and Ill decide. Want to send it to me? I can do it if you want.
There isnt a tutorial but you got to the materials tab at the bottom. The one that looks like a ball.Click add new.Change the RGBA values til you get the color you like. It will happen to whatever object you have selected.
What about textures?
Possibly an actual release.