Who is the inventor of the m4?

Answer 1

No one can claim solo credit for making the world first M4. Eugene Stoner invented the AR10(7.62x51mm) in 1955 but it was turned down by the army. In 1960 Stoner's chief assistant, Jim Sullivan and Robert Fremont scaled the AR10 to take the smaller 5.56x45mm cartridge naming it the AR15, the army classified it as the M16 and the M4 is just a cut down M16. In the mid 1960's Colt made the CAR-15 which was the first attempt at making a M16 both more compact and modular to fit any need the Military may have, but never made it to full production. Over years of the Car-15 and others like it have become the M-4 we know today. I know long answer.