It was a response to the American 155 mm M109. Designated M1973 by the U.S. Army, the Akatsiya is armed with a 152.4 mm howitzer based on the Soviet 152.4 mm D-20 howitzer and is sometimes confused with the M109 self-propelled artillery. The artillery system was developed at the design bureau No. 9 of Sverdlovsk. The factory designation of the howitzer is D-22 and the GRAU designation, 2A33. The chassis was developed by Uraltransmash. For further information please click here.
You can download this paper model template here: Soviet 2S3 Akatsiya (SO-152) Self-Propelled Artillery Free Paper Model Download [Box] [Gavitex]