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.

has come up with a smooth bore counterpart of the US assault rifle AR-15 (its military version is known as M16), the company said on Friday. "Earlier we created AR-15 type rifles for NATO’s 5 ...