As far as intermediate-caliber assault rifles go, the M16/M4 is an excellent rifle. The design is small and rather lightweight. It’s cheap to produce and surprisingly accurate for a military rifle.

“Going to a whole new caliber [round] is really quite significant. The last time the Army did this was in the 1960s when it went from the 7.62 mm [M14 rifle] to the 5.56 mm [M16 ...

The M16’s predecessor in U.S. military service, the 7.62x51mm NATO (.308 caliber) M14, had become the standard-issue rifle back in 1959, except for the U.S. Air Force Air Police/Security Police ...

An Army captain's critique of the service’s new XM7 rifle has experts and soldiers split on the issue of magazine capacity.