There are a total of (75) World War 2 U.S. Guns and other small arms (1939-1945) in the Military Factory. Definitive listings for U.S. Airborne Infantry and U.S. Infantry Regiment weapons can be found on their respective pages. Entries are listed below in alphanumeric order. This listing also includes portable weaponry such as hand grenades and mortars. Flag images indicative of country of origin.