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Cool Forgotten Weapons Merch! The Pancor Jackhammer was a select-fire combat shotgun designed by John Anderson in the 1980s. He was a Korean War veteran who had used a pump shotgun in combat, and while he liked the shotgun concept, he felt there must be a more efficient way to make a shotgun than a single-loading pump action. The tinkered with ideas and designs, and ultimately devised the Jackhammer. It is a remarkably clever and interesting mechanism, combining mechanical elements from the Mannlicher 1894, 1895 Nagant revolver, and the Webley-Fosbery automatic revolver. After making several dozen mockups out of wood and clay to get the mechanics just right, Andersen built a fully functional prototype, which is the gun you see here. It used a lot of large cast parts (and weighed a fully 17.5 pounds), and had a very slow reloading process. However, it proved that the concept was valid and it worked reliably. Anderson then made two more with m
