This breech loaded, smoothbore barrel infantry weapon was originally designed to defend dry moats/ditches and dead ground. Normal weapons (which fire grenades/bullets in a more or less straight line) could not reach these spots. Therefore, a curved trajectory was needed.
|Magazine capacity||150 rounds|
|Range||Min. 65m (at 45°)
Max. 1400m (at 45°)
Max. 700m (at 20°)
|Rate of fire||10-15 rpm (1 person)
25-30 rpm (2 people)
|Total weight||11 kg|
|Weight of grenade||950g (of which 95kg are explosives)|
The need for such a weapon was made clear as early as 1931, but it was not until 1935 that the arms manufacturer Châtellerault (MAC) came up with a prototype of a curved trajectory weapon which answered to the needs laid out by the CDF.
Typical for this weapon (in contrast with it’s Army counterparts) was the fixed elevation: 45 degrees in (e.g. counterscarp) casemates and 20 degrees in a GFM cloche type A.