The M3 gun motor carriage (M3 GMC) was a United States Army tank destroyer equipped with a 75 mm M1897A4 gun, which was built by the Autocar Company during World War II.

After observing the new and often decisive use of armored vehicles on both sides during the French campaign of 1940, the US Army decided that it required a 75 mm self-propelled gun, based on the chassis of the M3 half-track. This was initially known as the T12. However, after the addition of features such as the gun shield from the M2A3 (a carriage for the M1897A4), the new vehicle entered production under the name M3 gun motor carriage (or M3 GMC). Because the number of M2A3 gun shields available was insufficient for the M3 GMC order, a new gun shield was designed. Variants featuring the new shield were designated M3A1 GMC.

The T12/M3 first served in the Philippines Campaign in 1942 with the Provisional Field Artillery Brigade in the anti-tank and the fire-support role. It then served in North Africa in tank destroyer battalions. It was used ineffectively in the Battle of Kasserine Pass and several other engagements, but was used with success in the Battle of El Guettar. It also served in the Allied invasion of Sicily, but was eventually superseded by the M10 tank destroyer. A total of 2,203 were produced, of which 1,361 were converted back into M3A1 half-tracks.

The M3 GMC also served in the Pacific theater, starting with the Battle of Saipan. It proved effective against the Japanese Type 95 Ha-Go and Type 97 Chi-Ha tanks. It later served in the Battle of Okinawa, the Battle of Peleliu and many other island battles.

Pictured here is a 1:43 scale diecast replica of a US M3 Gun Motor Carriage equipped with a 75mm M1897A4 gun. Now in stock!

Dimensions:
Length: 6-inches
Width: 2-1/4-inches

Release Date: December 2024

Historical Account: "Hedgerows" - The Battle of Normandy was fought in 1944 between Nazi Germany in Western Europe and the invading Allied forces as part of the larger conflict of World War II. Over sixty years later, the Normandy invasion, codenamed Operation Overlord, still remains the largest seaborne invasion in history, involving almost three million troops crossing the English Channel from England to Normandy in then German-occupied France. It is most commonly known by the name D-Day.

The primary Allied formations that saw combat in Normandy came from the United States of America, United Kingdom and Canada. Substantial Free French and Polish forces also participated in the battle after the assault phase, and there were also contingents from Belgium, Czechoslovakia, Greece, the Netherlands, and Norway.

The Normandy invasion began with overnight parachute and glider landings, massive air attacks, naval bombardments, and an early morning amphibious phase began on June 6th. The 'D-Day' forces deployed from bases along the south coast of England, the most important of these being Portsmouth. The battle for Normandy continued for more than two months, with campaigns to establish, expand, and eventually break out of the Allied beachheads, and concluded with the liberation of Paris and the fall of the Falaise pocket in late August 1944.