The Su-122 was an assault gun which used the hull of the T-34 tank and was the result of an April 1942 specification for assault guns aimed with guns of 122mm caliber or higher. The Su-122 was designed by the Uralsky Machine Building factory (UZTM). The first production SU-122s were built at the end of 1942, with a total of 25 vehicles being built.

The Su-122 did reasonably well in combat against the Wehrmacht, although the high explosive antitank (HEAT) round developed for its gun didn't perform up to expectations. Production continued from 1942 until the summer of 1944, with a total of roughly 1,150 vehicles built. Eventually, the Su-152 replaced most of the Su-122s still in service.

Pictured here is a 1:72 scale replica of a Soviet ISU-122S self-propelled gun that saw action on the Eastern Front during 1944. Sold Out!

Dimensions:
Length: 3-1/2-inches
Width: 1-1/2-inches

Release Date: February 2018

Historical Account: "Faster Than a Speeding Bullet" - Realizing that the A-19S had a slow rate of fire, the famous D-25 gun was later fitted. D-25S production was prioritized to be fitted to IS-2s, but as more became available in late 1944, they were fitted to the ISU hull. This variant passed trials in late 1944 and was referred to as the Object 249 or ISU-122-2. Rate of fire was now 2-3 shots per minute, and even 4 shots per minute with experienced loaders.

The easiest way to spot this variant is by the double baffle muzzle brake or by the ball-shaped gun mantlet. The D-25S' muzzle brake reduced the recoil force from firing the gun and made working conditions better for the crew, as well as allowing a smaller, lighter gun mantlet being mounted, but with the same effective armor protection due to its round shape. 675 ISU tanks were fitted with the D-25 gun, but because of the huge stocks of the A-19, both the ISU-122 and ISU-122S were produced until the end of 1945.