Want to learn about the US patented automatic/semi-automatic shotgun?

Want to see a fully exploded diagram of this firearm?

Then your in the right place.

This US patent shotgun has low felt recoil, a reliable loading of blunt nosed shells and which can fire a high number of rounds per minute. More specifically, this invention relates to an automatic or semi–automatic shotgun, which has a low felt recoil but yet can be reliably fired at a high rate using a variety of blunt nosed shells.

This is the original patent, and contains 10 high–quality exploded diagrams.

Easy to follow and entirely informative.