Stop calling it DI - Why no one uses it anymore

Join Patreon and support MAC! http://www.patreon.com/militaryarms Unfiltered MAC on Twitter: https://twitter.com/MAC_Arms Follow us on Rumble: https://rumble.com/user/MilitaryArms Modern Gun School: http://www.mgs.edu Challenge Targets Discount Code: MAC556 (https://www.challengetargets.com/SFNT.html) The AR15 M16 is not a direct gas impingement rifle. Eugene Stoner never called it that, as a matter of fact he explicitly said it was not a DI rifle. It's a great system of operation, so why do new rifle designs not make use of this system of operation?