U.S. Marines with Marine Heavy Helicopter Squadron (HMH) 461 fire GAU-21 .50-caliber machine guns from a CH-53K King Stallions at Mountain Home Air Force Base, Idaho, Aug. 17, 2022. This was the first time the Marine Corps deployed the King Stallion in an exercise. HMH-461 is a subordinate unit of 2nd Marine Aircraft Wing, the aviation combat element of II Marine Expeditionary Force.
(U.S. Marine Corps video by Cpl. Adam Henke)
Source: U.S. Navy (video statements)