Manufactured by Thunder Valley Machine Company, this is a factory quality reproduction of the Colt Model 1883, marked as being the fourth in a series of six made by TVM. A refinement of earlier Gatling designs, the 1883 is outfitted for the Accles drum, a powered loading mechanism that permitted a higher rate of fire than earlier gravity powered designs, serving as a link between earlier box/hopper fed repeaters and modern "chain gun" weapons. Constructed chiefly from brass, with steel side rails, barrels and internals, with a reproduction brass Colt plaque on top of the receiver, TVM markings on the right side rail, and a brass handled crank. The donut magazine has a brass outer jacket, with the inner workings constructed from micarta composite. The tripod is steel construction, with a brass yoke and integral elevation screw.