

While the tank's main gun was considered satisfactory, its armor was deemed to be too light. In 1953, an Israeli military delegation visited France to examine the then-new AMX-13/75 light tank, which was armed with the high-velocity CN 75-50 75 mm tank gun. However, the nicknames "Super Sherman" and "Isherman" were never officially used by the Israeli Defense Forces. The M-51 was also referred to as the Isherman (i.e. The Sherman M-50 and the Sherman M-51, both often referred to abroad as the Super Sherman, were modified versions of the American M4 Sherman tank that served with the Israel Defense Forces from the mid-1950s to early 1980s.
