It's high polished aluminum. I did the engraving and polished the barrel to 2000gt mirror finish and the guy that did the stock painted the barrel with a candy blue. I put the same blue in the engraving, and we offer the hydro dipping also.
I always liked the concept of "themed" guns, kind of like what Orange County Choppers does with motorcycles but with, of course, guns. Nice color, graphics and coverage. I like your use of the matching blue color fill in the engraving. If I were to offer critique, I would have to admit that the engraving design itself doesn't do it for me. Looking at the total picture however, it is a unique one of a kind piece.