M4A1 Sherman. The main difference between the M4A1 and the original Sherman was the M4A1's 76 mm gun. The increase in caliber was insignificant, but the increase in range and stopping power gave these Shermans a fighting chance. An encounter of equal numbers of Shermans and Panzers was still likely to end in defeat for the Allies, but the Sherman could be built so quickly that their sheer numbers overwhelmed the Germans. U.S. Army Tanks Flashlight for your Android phone: https://play.google.co