The Prototype IV (Sold)
Prototype IV, in addition to the wooden trim featured on Prototype III was made with a new cloth pattern. Instead of each layer being made up of 10 or 11 pieces, each layer is now a single piece of fiberglass. This gave this serpent a more uniform appearance and while it created quite a bit of fabric waste, the trade-off in time saved and aesthetics made it worth while. Also, the outer pipe of the receiver was resized to give a tighter fit to the body.