The Colt 1911 pistol in .45 ACP served as the primary sidearm of the United States military throughout the war. It was often colloquially referred to as the Colt .45. The pistol had a seven round magazine capacity and an excellent single action only trigger. It remains enormously popular to this day in a number of different configurations and brands.
Colt M1911A1 (2/19)
Submitted to "The Most Famous World War II Weapons"