French engineers introduced several innovations to the Sherman tank design, including the oscillating turret, which was very different from all previous turret designs ever mounted on a Sherman chassis. However, the French only ever modified a handful of Sherman tanks to the M4A1 FL10 standard and never used it within the ranks of their own army. Instead, the M4A1 FL10 was purely intended as an export vehicle for Egypt. The oscillating design enabled smaller turrets and reduced the weight and size of the tank—which also made it a smaller target. However, it also made for cramped crew quarters.

Fortunately, the turret crew didn’t need to load the 75mm cannon on the M4A1 FL10. Similar to the AMX-13, an automated mechanism automatically reloaded the cannon. The autoloader consisted of two drum magazines, each of which held 6 rounds.