Reibel machine gun

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Preserved mitrailleuse mle 31 in Saumur armour museum

The Reibel machine gun (officially designated as mitrailleuse mle 1931 - machine gun, model of 1931), was a machine gun used on French tanks of the World War II era and in fortifications such as the Maginot line. It used the 7.5 mm MAS type of ammunition and was fed with 150-round drum magazines. The variant used in fortifications was specifically modified with a different rifling to accommodate the balle D heavy ball type of ammunition.

mitrailleuse mle 1931 specifications:

Calibre: 7.5 x 54 mm

Length: 1.03 m

Weight: 11.8 kg

Muzzle velocity: 830 m/s (with balle C)

Rate of fire: 750 rounds per minute