The Browning M2 .50 Caliber Machine Gun, Heavy barrel is an automatic, recoil operated, air-cooled machine gun with adjustable headspace and is crew transportable with limited amounts of ...

Cal. .50, AN/M2”)—and it was fitted with a substantially lighter thirty-six-inch length barrel. Ten crew members —the pilot, co-pilot, bombardier, navigator, radio operator, and five gunners ...