Comparing: M12 vs. SU-14-1

The M12 was developed by the Rock Island Arsenal, with a total of 100 vehicles manufactured. American soldiers dubbed the vehicle King Kong. The M12 fought well in battles on the Siegfried Line.

Developed on the basis of the SU-14. In 1936 a prototype was manufactured and tested. In 1937 the project supervisor was purged and the project was canceled. The prototype was shipped to Kubinka for storage. In 1941, during the Battle of Moscow, the SU-14-1 was used for long-range bombardment.