The D-20 gun-howitzer was developed shortly after the end of WW2 by the F. Petrov Design Bureau; it was intended to replace the pre-war 152 mm ML-20 howitzer (M1937). The barrel length of the gun is 25 calibers. The D-20 was the first 152-mm cannon system to incorporate a semiautomatic vertical-sliding-wedge breech block. The gun was also used for the self-propelled 2S3 Akatsiya. The D-20 is in operation in at least 13 countries and has been license manufactured in the People's Republic of China as the Type 66 (or the improved version Type 66-1). Its self-propelled version known as Type 83 was first introduced in the mid-1980s. Item No 02333 Item Name Soviet D-20 152mm towed Gun-Howitzer Bar Code 9580208023335 Scale 1:35 Item Type Static Kit Model Brief Length:260mm Width: 78mm Total Parts 240+ Metal Parts n/a Photo Etched Parts 1 piece Film Parts n/a Resin Parts n/a Total Sprues 9 sprues , frame and tires Released Date 2013-05 More Features "The kit consists of over 240 parts ,1 piece of Photo Etched parts - Details finely represented by newly tooled parts - Rubber tires"