The M16 Multiple Gun Motor Carriage was a halftrack that mounted four .50 caliber machine guns intended for anti-aircraft use. Almost 3,000 were manufactured between May 1943 and March 1944; they were used by the US Army until 1951. These halftracks were highly effective against low flying aircraft during World War Two but the advent of jet and high performance propeller aircraft made these systems obsolete. US Army air defense halftracks were organized in platoons of four vehicles and companies of four platoons, for a total of 16 M16's per company. These Roco models are highly detailed, yet durable enough for miniature wargaming.