Contrary to popular belief, the M3A1 never had a version with the quad browning mounted on it. The only versions were: 1) Single .50 Browning in ring mount 2) Single .50 Browning on pedestal mount 3) Single .50 Browning in ring mount with two side .30 Brownings on pintle mounts 4) Double .30 Brownings on pedestal mounts 5) Double .30 Brownings on ring mount 6) 105mm Howitzer conversion The quad mount brownings were exclusively used by the navy. The German equivalent had 4 37mm machine guns in a quad mount. There may have been some in-unit conversions to quad mounts, but no M3A1 ever left the factory with that configuration.

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