Gunsport of Colorado | Class 3 FFL Dealer | 1707 14th St, Boulder, Colorado 80302 | 303.938.1396
How a M16 A1 works
In 1964, the M16 entered U.S. military service and the following year was deployed for jungle warfare operations during the Vietnam War. In 1969, the M16A1 replaced the M14 rifle to become the U.S. military's standard service rifle.