Army and Air Force personnel were instructed in the use of the ACR rifles, and the M16A2–which had been the standard service rifle since 1982 – was used as a control group. The Army put the ...
The M16A2 has a thicker barrel than the M16A1. The flash suppressor was changed to keep the rifle from kicking up dust when ...
A shortened variant of the M16A2 rifle, the M4 carbine provides the individual soldier operating in close quarters the capability to engage targets at extended range with accurate, lethal fire.