The Tank Museum - The M16 Multiple Gun Motor Carriage was a combination of the M3 halftrack and the M45 Quadmount, armed with 4 .50 calibre M2 machine guns. It was intended
![A quad .50 Cal machine gun mounted on a half track is manned by Btry A, 209th AAA Battalion on the Villa Verde Trail near Carranglan in the Philippines on 7 April A quad .50 Cal machine gun mounted on a half track is manned by Btry A, 209th AAA Battalion on the Villa Verde Trail near Carranglan in the Philippines on 7 April](https://49fe30bb3aa7406c16dc-5c968119d095dc32d807923c59347cc2.ssl.cf1.rackcdn.com/2008.354.470_1.jpg)
A quad .50 Cal machine gun mounted on a half track is manned by Btry A, 209th AAA Battalion on the Villa Verde Trail near Carranglan in the Philippines on 7 April
![US Army M3 Quad semi-chenillé-50 avec la défense aérienne 4 Browning M2HB de lourdes mitrailleuses .50 et l'équipage Photo Stock - Alamy US Army M3 Quad semi-chenillé-50 avec la défense aérienne 4 Browning M2HB de lourdes mitrailleuses .50 et l'équipage Photo Stock - Alamy](https://c8.alamy.com/compfr/br84r8/us-army-m3-quad-semi-chenille-50-avec-la-defense-aerienne-4-browning-m2hb-de-lourdes-mitrailleuses-50-et-l-equipage-br84r8.jpg)
US Army M3 Quad semi-chenillé-50 avec la défense aérienne 4 Browning M2HB de lourdes mitrailleuses .50 et l'équipage Photo Stock - Alamy
![Quad .50 Cal machine guns, mounted on a half-track, fire at enemy bombers near Carranglan in the Philippines in 1945 | The Digital Collections of the National WWII Museum : Oral Histories Quad .50 Cal machine guns, mounted on a half-track, fire at enemy bombers near Carranglan in the Philippines in 1945 | The Digital Collections of the National WWII Museum : Oral Histories](https://49fe30bb3aa7406c16dc-5c968119d095dc32d807923c59347cc2.ssl.cf1.rackcdn.com/2008.354.472_1.jpg)