50 Caliber Machine ... gun is has a back plate with spade grips, trigger, and bolt latch release. This gun may be mounted on ground mounts and most vehicles as an anti-personnel and anti-aircraft ...

The MK19 Grenade Machine Gun can defend against hovering rotary-wing aircraft, destroy lightly armored vehicles, fire on suspected enemy positions, and provide high-volume fire into an engagement ...

50-caliber) machine guns. Beneath the B-24 was a ball turret, within which a crewmember could sit, providing defensive measures to the underside of the B-24. And in the rear of the aircraft was ...