What guns were first used in world war 2?

The first American made weapons used by the Troops were the model 1903 Springfield bolt action rifles from World War I.The Johnson automatic rifle was also used in 1 Campaign in the first months of World War II.The Colt 1911 semi-auto pistol was also carried by officers and enlisted men in the first stages of the war.The standard Machine gun was the Browning Model of 1919A3 machine gun.