Developed in 1943 in Great Britain by mounting the 57-mm British Ordnance QF 6-pounder anti-tank gun on the chassis of the French tankette UE2. The gun featured a muzzle brake designed specifically for this gun. One prototype was manufactured.
Time for the successive autoreloading of each shell into the magazine.
The technical characteristics shown are for the Siege mode
Characteristics are specified for a vehicle with crew members trained to 100%.