Editing M4 Sherman (section)

===Secondary armament===
The standard secondary armament comprised; a [[Weapon mount#Coaxial|coaxial]] [[.30-06 Springfield|.30 caliber]] [[M1919 Browning machine gun]] A5 with 4,750 rounds of ammunition, a ball-mounted M1919 A4 in the front hull operated by the assistant driver and a [[Weapon mount#Pintle|pintle mounted]] [[.50 BMG|.50 caliber]] [[M2 Browning]] HB machine gun with 300 rounds on the turret roof for anti-aircraft protection.{{sfn|Esteve|2020|p=18}} Early production models of the M4 and M4A1 also had a pair of fixed, forward firing M1919 machine guns mounted in the front hull and operated by the driver; this arrangement was inherited from the M2 and M3 medium tanks and was a result of a World War I requirement to be able to sweep the ground in front of an advancing tank with unaimed fire.{{sfn|Green |Brown|2007|p=22}}