Homemade Semi-Automatic Shotgun

This homemade belt-fed shotgun is semi-automatic and "if you have a registered m16 lower or a drop in auto sear, it becomes a full auto 12 gauge machine gun," says its creator. Video after the break.

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

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- Source : http://www.techeblog.com