This gun is a replica of what John Smith would have used in Jamestown.
Kaleb is wearing the "12 apostles". These 12 wooden containers were filled with gun powder. When you see how this gun is fired...by lighting the end of a rope on your gun...you'll know how dangerous having gun powder hanging around your neck could be! It is probably what caused John Smith's terrible gun powder accident, which sent him back to England to recover.