With the high velocity flat trajectory 5.56 mm cartridge one should aim about half way between the enemy’s chin and belt to ...

The M16’s predecessor in U.S. military service ... plagued by perceived problems for infantry usage in the jungles of Vietnam: the heavy weight and lack of controllability during full-auto ...

Despite early controversies and setbacks in Vietnam, the M16 proved its worth. The rifle's design has evolved, leading to variants like the M4 and specialized models used by special operations forces.