US Helicopter Door Gunner Firing the Monstrously Powerful GAU-21

Welcome back to The Daily Aviation for a feature on the US GAU-21 mounted on some of the most powerful helicopter in the world. Footage Credit: U.S. Marine Corps / U.S. Air Force ,Derivative Work by The Daily Aviation Voice, text and video editing belong to The Daily Aviation, any use of these content without permission is forbidden. Don’t forget to subscribe us on Facebook or Twitter. You have a question or you would like to send us footage. Send us a message.