The M40 is the final evolution of the self-propelled gun developed by the US military during World War II. An open-top hull developed using various components of the M4 Sherman. It was equipped with a new 155mm cannon nicknamed Long Tom. By making the towed gun self-propelled, the time required to change positions was greatly reduced. Eight crew members operated the gun. However, the firing rate was 1 bullet per minute. The maximum range using high-explosive shells was 23.5 km. In addition, a spade was equipped at the rear of the vehicle to ensure stability when shooting. Equipped with a 460 horsepower air-cooled radial engine mounted in the center of the vehicle body, it demonstrated mobility with a maximum speed of 38km/h. Production began in February 1945 at the end of the war, and it was officially adopted in May of the same year. However, due to the end of the war, production ended at 418 vehicles. After the prototype vehicle was introduced to the European front for practical tests, during the Korean War that broke out in 1950, it was used for indirect fire missions against enemy positions from a distance. It demonstrated tremendous power.

This is a plastic model assembly kit of the U.S. military M40 self-propelled gun. -1/35 scale, total length 305mm, total width 91mm. -Based on detailed research on actual vehicles, it features a flat body and a huge 155mm cannon. - Expressively reproduced. - The vertical movement of the main gun is controlled in the same way as the real vehicle with a balance machine using a polycap. It is also possible to turn left and right. - The parking lot at the rear of the vehicle is movable, and the work platform can be opened or closed. -The inspection hole and light lens of the cupola are reproduced with transparent parts. -The T80 track uses a realistic and easy-to-use belt type. -The engine grill has a sharp finish with photo-etched parts. -Rack for transporting shells and shells, cylindrical A set of accessory parts such as a charge storage case. - Includes 8 figures of crew members preparing to fire and 2 types of decals from the Korean War.