This M60 machine gun is part of the XM2 armament subsystem; it's aimed and fired in the aircraft instead of immediately. The most typical interface on gentle machine guns is a pistol grip and trigger using a buttstock attached. Car and tripod mounted machine guns typically have spade grips. https://angelonbpzk.jaiblogs.com/62717901/getting-my-machine-gun-phoenix-to-work