M1 Garand 

This semi-automatic gun was the standard infantry rifle since 1937-1959. With this gun the U.S was able to get a huge advantage in World War II. The M1 was not just capable of firing fast it also had great accuracy which made it very efficient. This gun could have also been accessorized with a bayonet or a grenade launcher.

Colt 1911 

The Colt 1911 is one of the most popular handguns ever created. This pistol has also been used by different branches to this day. The reason why this handgun was made was because in the Philippine-American War troops needed a gun that can be used to stop the enemy from approaching them . The Colt 19111 was the perfect sidearm since it was very powerful and easy to use.

PPSh-41

This sub-machine gun was the Russians choice of gun in World War II. The Russian factories were at one point producing 3,000 of these per day. it was a gun that was easier to make and it had better accuracy than their previous gun the PPD-40. The PPSh-41 was also able to fire 1,000 bullets per minute, With this gun the Russians firepower had become a lot stronger.

MG34

The MG34 was the Nazis machine gun that would give them the advantage early in the war. It was also light enough to be carried around by one person. This gun also had a double-cresent trigger which allowed it to be used as an automatic or as a semi-automatic It held 75 bullets in its magazine and it was easy to reload it. The MG34 was also good it wouldn’t overheating when shooting it. .

https://www.warhistoryonline.com/war-articles/top-11-best-infantry-weapons-ww2.html