In U.S. service, the M16 primarily replaced the M14 and M1 Carbine series as standard infantry rifles, and to a lesser extent, some of the jobs of the BAR Light automatic rifle.

• 在美国，M16主要用来替换M14自动步枪步枪以及M1卡宾枪来作为标准步兵武器，以及某些情况下勃朗宁自动步枪的替代。