I've noticed that you can buy a blank in all kinds of Camo colors. Does anybody make solid color blanks in the Primary "black rifle" colors (flat black, olive drab, and flat dark earth)?
Depending on the quantity you want, I am quite sure someone could make them for you.
Jeff Powell sells some solid color Alumilite blanks .... see ExoticBlanks.com and look under Guest Artists for Jeff, or he might be listed as MasterScroller