Description
Ten shells. A moving barrel. Semi-auto and full-auto fire.
Take a look inside the Pancor Jackhammer — a twelve-gauge bullpup shotgun with an unusual gas-operated action and a revolving cylinder.
See how its barrel movement rotates the cylinder and how the fire selector controls trigger travel.
Only three working prototypes were built. The Jackhammer never entered production.
All mechanisms are visualized in World of Guns: Gun Disassembly.
Could this design have become a successful combat shotgun?
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