That's the M1 Bazooka if ya wanna be specifc.
Even if it arguably did suck versus the Panzerfaust, the M9 Bazooka, the M9 Bazooka copy by the Germans, otherwise known as the (frapping of the firing person) PzSr.
Versatillity has it's virtues.
Weapons of merit:
Dodge WC chassis
Mack duce and a half
Higgens Boat
M1 Garand
M-1903
105mm Howitzer