Developed in the mid 1990s by South African designer Tony Neophytou, the Neostead 2000... was the first truly high-capacity shotgun put into production, with two magazine tubes over a single barrel... This configuration gave it a capacity of 12+1, and a selector switch allowed the shooter to control whether only one tube was fed from or if both would be used alternating back and forth. Thus the tubes could be loaded with different types of ammunition to have readily available at the flip of a switch. It was produced only in 12ga, with a 3″ chamber.

The Neostead has a bullpup type layout, with the action and ejection port behind the grip and trigger. This allows a full-length barrel in a short overall package, and it is for this reason that the pump mechanism is designed to cycle opposite of traditional shotguns (forward to open and back to close).

Ian's Video: [21:40] https://youtu.be/FIU8axpaYi0?si=