The M4 is a specific US Marine variant that is a shorter, handier version of the military-only M-16A2 rifle of the Vietnam era. The AR 15 is the civilian version of the Stoner rifle platform that can accept many of the military rifle parts and accessories, but is only capable of semi-automatic fire.
In this manner, is an AR 15 the same as an m16?
An AR15 is semiautomatic only. AR-15 is the semi-auto civilian version of the M16 and M4A1 rifles. the ar shoots Remington .223 rounds, and the M16 shoots 5.56 NATO rounds some will say they are the same but there are pressure differences and the neck of the 5.56 NATO is larger than the .223.
What is the difference between an AR 15 and an AR 10?
One common question with today's tactical rifles is which parts are interchangeable between an AR-15 and an AR-10. The primary difference between the two is that an AR-15 is bored in 5.56/.223 and an AR-10 is bored in 7.62/.308.
Is an m4 an AR 15?
In the late 1960's, the US military began use of an AR-15 variant known as the M16 rifle. The M4, which features a shorter barrel, collapsible stock, and other modifications, has become standard equipment for close-quarters combat through the US Military.