Comparing: BT-7 artillery vs. Pz.Kpfw. III Ausf. A

In 1934–1935 the design bureau of the Kharkiv Locomotive Factory developed this artillery modification of the BT-7. The new elliptical turret was equipped with the 76.2-mm CT-28 gun. In addition, some vehicles received new radio stations. A total of 155 artillery BT-7s were manufactured. The vehicles saw combat on the Karelian Isthmus, in Manchuria, and during the first period of the Great Patriotic War.

Produced in 1937, with a total of 10 vehicles manufactured. The project was canceled due to its weak suspension and inadequate armor.