AA Gun Soviet Vietnam https://en.wikipedia.org/wiki/ZPU 14.5×114mm-caliber heavy machine gun The ZPU (Russian: зенитная пулемётная установка, meaning "anti-aircraft machine gun mount") is a family of towed anti-aircraft gun based on the Soviet 14.5×114mm KPV heavy machine gun. It entered service with the Soviet Union in 1949 and is used by over 50 countries worldwide. Flying Leatherneck Aviation Museum AT MCAS Miramar http://flyingleathernecks.org 858-693-1723 TilTul http://tiltul.com LinksYouWantToRemember CIMG4884 AA Gun Soviet Vietnam