The self-propelled gun GMC M12 was in reality used through 2nd World War by the U.S. Army. It had been developed on hull concerning the M3 Lee / give tank which finished up being setup the initial French GPF 155 mm gun. One of many tips armament, the ammunitions additionally the device group ended up being definitely located in an open topped area behind the automobile. Here is the motorist's as well as the radio operator’s seats was at reality protected. Experience the outcomes the recoil with the artillery piece, the M-12 was indeed made out of a rear blade that was lowered and fixed inside ground.