The Army's recent order of a four-bore rifle prototype made some waves. It's a pretty exciting piece of technology, but if it gets picked up, it won't be the first four-barrel weapon that American troops have fielded. And while this new prototype rifle fires 6mm rounds at an impressive rate, the older system packed a bigger wallop.
This older four-barrel system wasn't a rifle, however, it was a rocket launcher called the M202 FLASH. "FLASH," in this case, stood for FLame Assault SHoulder weapon. It packed four 66-millimeter M74 rockets that were held together by a clip.