The Israeli Merkava and M1 Abrams TUSK II tanks sport a single M2 Browning 50 caliber heavy machine gun mounted directly on top of the main gun barrel. How effective is such
World War 2 Steel Machine Gun Stock Photo 47873713 | Shutterstock
Machine Gun on Old American Tank with Blue Sky Stock Photo - Image of fight, america: 52805582
Why are the machine gun operators on armored vehicles outside exposed? - Quora