M75 Armored Personnel Carrier.
Considered a forefather to the M113 family, the M75 was built on the chassis of the M18 “Hellcat”, an agile American tank destroyer built during WWII. And though, the M113 claims its roots from this armored combat vehicle, they do have a few distinct differences. The M75 is not heralded as an “Amphibious” craft, its armor ranged from 1in-1.75 inches of steel, unlike the M113’s .47-1in of aluminum, and the M75 is not made to be air-dropped into a combat zone. Though, the M75 did house its engine in the front of the vehicle in order to promote crew protection, and its primary armament was a .50 caliber machine gun, but in a similar turret mount to the M26 Pershing tank’s commander cupola.
Additionally, an M20 Super Bazooka was carried along with 10 rockets, and 180 rounds of ammunition for an M1 or M2 carbine in the cargo area.