Modern Marvels: During the 1920s and '30s in big cities and small towns alike, they earned a fierce reputation in a blaze of bullets. They were the best friends of criminals such as John Dillinger, Pretty Boy Floyd, Baby Face Nelson, Al Capone, and Bonnie and Clyde. Handle their Colt 45s and 38s, Tommy guns, Whippets, and Browning automatic rifles as we uncover the stories of gangster guns.