The aesthetics and execution of the model are spot on. But I do question the feasibility of having five tube magazines on a revolving dolly that looks easily broken when a large detachable drum magazine could have the same capacity and function much better. Also what mechanism revolves the tubes?
Both the lower and upper receiver looks too thin, the upper receiver bolt tube lacks enough side to look like a cylinder. Pistol grip smoothing isn't great. The ris tube looks pretty good, but the rest of the parts still needs more tweaking and work.