AC 47 anti-tank gun

The AC 47 was a French anti-tank gun of 47 mm calibre. It was principally used in the ouvrages and casemates of the Maginot Line in the late 1930s; another version was created for naval use.

The AC 47 was principally used as a defensive weapon, since its portability was intentionally limited to prevent the weapon from being turned on defending troops if a fortification was captured.

Characteristics

 * Length of the tube : 2.52 m (8.26 ft)
 * Rifling: 16, right-handed
 * Penetration: At an incidence of 30° it could penetrate 77 mm of armour at 500 meters and 56 mm at 1000 meters.