Who was the inventor of the m16?
The M16 assault rifle originated as the AR-15, designed by Eugene Stoner (1922-1997) at ArmaLite in 1957. The AR-15 itself was a scaled down version of the 7.62mm AR-10. ArmaLite sold the design of the AR-15 to Colt, which submitted the rifle to the United States military command for testing. It was subsequently adopted into service in 1963 as the M16.
In a way the M16 is a machine gun, but it can also do three round burst and semi automatic. civilians are not allowed to have automatic m16s unless you have an automatic weapons permit, but you can have a semi automatic M16. (an AR-15 is almost like an M16 and much cheaper if you're looking to buy one.)