Why Is It Called An M4?
Why Is It Called An M4? The M4 name is essentially a sequential continuation of the designations of military carbines which started with the M1 carbine. Colloquially, M4 has come to mean “shortened AR-15”, with many non-Colt manufactured M4 rifles (Such as the Bushmaster M4) becoming known as “M4-geries”. What is M4 in real life?