The Big Bang Model 105MM was introduced in 1958 along with the 60MM and 155MM cannons. The 105 uses the same barrel/breech as the 10FC, but with the addition of some modernizing features like recoil tubes and rubber tires to help the toys appeal to the children who were seeing WWII newsreels. The 105MM has always been produced with an olive drab (OD) finish. As with the 60MM the 105MM is found with both the Primere tires and the current tractor tires.