The M12 was built on the chassis of the M3 Lee tank; some sources claim that later M12s used the M4 Sherman chassis, but this might be a confusion with the M12’s use of “Sherman-style” bogie trucks with trailing idlers.
It had an armored driver’s compartment, but the gun crew were located in an open topped area at the back of the vehicle. It mounted a 155 mm gun M1917, M1917A1 or M1918 M1, depending upon availability, a weapon derived from the nearly identical French 155 mm GPF gun of World War I vintage. Limited storage space meant that only 10 projectiles and propellant charges could be carried on the vehicle.
An earth spade (similar to a bulldozer blade) at the rear was employed to absorb recoil. This layout—large gun mounted in an open mount at the rear, with a spade—was the pattern adopted for many years by other heavy self-propelled artillery.
The Kit is not simple. In this kit a lot of details. It can not be built quickly. During assembly will be a small problem with connection parts of the chassis and body.
The model as always was painted with acrylic paint, tinted oil paints and MIG pigments.