Reibel machine gun
The MAC mle 1931 machine gun (official French designation Mitrailleuse modèle 1931 - machine gun, model of 1931), was a machine gun used in French tanks of the World War II era, as well as in fortifications such as the Maginot line. It is also sometimes known as the JM Reibel, from Jumelage de mitrailleuses, or Reibel twin-mounted guns and really refers to the specialized twin-mounting frame used in JM cloche cupolas on the Maginot Line fortifications, while MAC mle 1931 refers specifically to the gun. The JM twin-mounts were the standard emplacement for the mle 1931 in fixed fortifications, while tanks and other AFVs received single guns.
| Reibel machine gun | |
|---|---|
Preserved mitrailleuse mle 31 in the Saumur armour museum (single-mount, tank-style model) | |
| Type | Machine gun |
| Place of origin | France |
| Service history | |
| Used by | See Users |
| Wars | World War II 1948 Arab–Israeli War First Indochina War Vietnam War Algerian War Chadian Civil War (1965–79) |
| Production history | |
| Designed | 1931 |
| Manufacturer | Manufacture d'armes de Châtellerault |
| Specifications | |
| Mass | 11.8 kg |
| Length | 1030 mm |
| Barrel length | 600 mm |
| Cartridge | 7.5×54mm French 7.5x55mm Swiss |
| Caliber | 7.5 mm |
| Action | Gas |
| Rate of fire | 750 rounds per minute (theoretical); 450rpm for one minute or 150rpm sustained (practical) |
| Muzzle velocity | 830 m/s (with balle C) |
| Feed system | 150-round pan magazine |
| Sights | Iron (single guns) Telescopic (fortification mounts) |
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