While this gun rose to popularity in the interwar period, progress on many technologies faltered. But by WWII, it would be the standard issue submachine gun for the United States. Postal Service, Marines, and law enforcement agencies initially.

The model 1921 was the first model introduced and the gun would see use for the U.S. After the war, the firearm was renamed the Thompson Submachine Gun and marketed commercially. The idea though to have an automatic firearm in a pistol caliber was revolutionary and many would follow suit. 45 ACP automatic firearm that a person could wield on his or her own, but it was made too late for adoption in World War I. The Annihilator I, as it was originally designated, was a. He originally envisioned a semi-automatic firearm that would replace the bolt-action rifles that were so prevalent, but what he ultimately developed was one that has the claim of being the first commercially marketed submachine gun. But how did that happen? The story of this gun collides two World Wars and a feeble attempt at teaching an old gun new tricks.ДЄround 1916, General John Thompson founded Auto Ordnance in order to make a new firearm. Yes, I typed that correctly - a Thompson submachine gun chambered in what would be designated. Regardless, their resurgence always makes a unique fusion of the past and the present. Often the idea for an invention can have application in future technologies, either successful like the Gatling or unsuccessful like the G30. A G30 semi-automatic rifle served as the basis for a prototype of the Winchester automatic rifle. A Model 1883 Gatling Gun, made in 1886, was fixed with belts and a motor in 1946 to become a test gun in what would become the Vulcan Project. Many inventions throughout history have seen multiple lives.

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