Heavy self-propelled gun built at the Chelyabinsk Kirov Plant, (Chelyabinskiy Kirovskiy Zavod (ChKZ), Chelyabinsk, Russia), in December 1943. Kit has raised and engraved exterior surface features, detailed running gear with multipart wheels and sprockets, vinyl track lengths, separately molded hatches and on-vehicle equipment, cylindrical fuel drums, gun shield, 12.7 mm DShK AA machine gun. Decals and painting reference for (2) vehicles.