The M3A1 aka Pancor Jackhammer is a 12-gauge, gas-operated automatic shotgun designed in 1984 and patented in 1987. Only a few working prototypes of the Jackhammer were built. In the late 1990s, the current owner of the design, Mark III, attempted to sell the patents, prototypes, and production rights. Nonetheless, its distinctive appearance and futuristic design have made it a prop in action films, television programs, and video games.
Notes:
- Modmaster Series III (3) version was added 3rd of March 2015
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