military units and government groups focusing on covert and clandestine activities, such as the Central Intelligence Agency. He found no takers for his newest guns and shelved the project, moving on to take an engineering job with aviation firm Fairchild-Hiller.ĭuring the same period, WerBell had been working separately developing sound suppressors and other specialized weapons for elite U.S. The next year he made a second prototype in 9mm. In 1964, he crafted his first prototype Model 10 in. 45 caliber Model 6, which looks similar to the legendary Thompson submachine gun, achieved at best moderate success with law enforcement organizations and he found little interest in his subsequent designs in the United States or abroad. In the 1950s, Ingram had set up his own firm, Police Ordnance Company, selling in part weapons of his own design.

military’s interest in such weapons, during the Vietnam War in particular, is quite possibly how it came to be in possession of the 492nd’s MAC-10 in the first place. 45 caliber version and 32 in the 9mm variant – in seconds, though.īut these same attributes that made them attractive to criminals were the ones Ingram and WerBell thought would make them ideal for counter-insurgency and counter-terrorism type missions, as well as for police duties and VIP protection details. With that rate of fire, a shooter could expend the gun's magazine – with 30 rounds in the. They might not have been particularly accurate, but firing more than 1,000 rounds per minute, they could lay down a hail of fire in a confined space. At less than a foot long with its wire stock folded up and less than seven pounds empty, the small guns were easy to carry concealed.

Mac 10 gun