Sure. Though that may be inadvisable for material properties reasons that are tricky to explain. I'll put it this way: dyes affect plastics in different ways. Having too much of an effect relative to another material in the same part will make it fail very quickly.
Really what it means is one part, one color. Don't try to mix them on individual parts. Any color is fine, just don't try to combine them on single components.
So you are telling me that I can print that gun and make it look any color...i.e. red white and blue?
Sure. Though that may be inadvisable for material properties reasons that are tricky to explain. I'll put it this way: dyes affect plastics in different ways. Having too much of an effect relative to another material in the same part will make it fail very quickly.
Then I'll stick with the copper color.
Really what it means is one part, one color. Don't try to mix them on individual parts. Any color is fine, just don't try to combine them on single components.