Pancor Jackhammer

The Jackhammer is a bullpup automatic shotgun which never entered production, using a revolver-style drum magazine with a rotating action similar to the British Webley-Fosbery revolver. It is often seen in videogames as a "super shotgun;" the Jackhammer's popularity is due, in large part, to the futuristic look of the weapon. It is often mistakenly described as the only fully automatic shotgun in existence.

There is an element of unreality in featuring the Jackhammer in any context, as the weapon never made it past prototype stage; only two guns capable of firing in fully automatic mode were ever made. The real guns had problems with magazine grooves needing to be manufactured to extremely tight tolerances for the weapon to cycle correctly; typically, the fullauto guns could only manage two or three shots sequentially before failing to cycle. A well-known fact is that more Jackhammers have appeared in fiction than ever existed in real life.

The Pancor Jackhammer can be seen in the following video games and films:

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Pancor Jackhammer, 12 Gauge