Summary and Key Points: The M16 rifle, designed by Eugene Stoner and adopted by the U.S. military in the 1960s, has remained a staple due to its reliability, modularity, and effectiveness.

Close combat units received the M16 before the bulk of the Army when ... In a nod the soon-to-be-fielded, helmet-mounted Integrated Visual Augmentation System (IVAS), it also links wirelessly ...