SD2:M1 Gun 57mm

 is a United States Anti-tank unit in Steel Division II.

Background
The Ordnance QF 6-pounder 7 cwt anti-tank gun was developed by the United Kingdom in response to the limitations of existing 2-pounder guns. The gun itself was fully designed as early as 1940, although the carriage wasn't completed until a year later, while delays in starting production pushed back its entry into service to May 1942. The result was a flexible, powerful anti-tank gun that could effectively fight German tanks of the time and became the primary British anti-tank gun of World War II.

The gun was adopted by US Army infantry units as 57 mm Gun M1, after the North African campaign demonstrated the need for a more powerful anti-tank gun. Both the Cavalry and Airborne units rejected the design, the former due to its firepower, the latter due to its weight.

3rd Armored has their M1s in Anti-Tank Platoons in each Armored Infantry Company.

2nd Infantry (SD2) has 9 in each anti-tank company in the infantry regiment and three more in a anti-tank platoon in the infantry battalion.