The howitzer could fire shells weighing more than 100 kg at a range of almost 18 km. The weight of the gun was 19 t in transport position. A special caterpillar carriage was developed - a large tracked bearing surface prevented the howitzer from sinking into the ground, and the strong carriage withstood the powerful recoil when firing.
The first combat use of the B-4 took place during the Soviet-Finnish War of 1939-40, when it was used to destroy Finnish concrete fortifications. The Finns nicknamed the gun "Stalin's Sledgehammer". The German Army captured a number of these guns and used them under the designation 20,3 cm H.503 (r). The howitzer was used throughout WWII.
The gun was successfully used in storming fortresses and in battles in the streets of large German cities.
At a glance
- Scale: 1:35
- Type: Assembly Kit
- Subject: Artillery
- Nation: Russian
- Era: 1939-1945 - World War II
- Brand: Zvezda
- Product code: Z3704
Supplied unassembled and unpainted. Glue, paints and tools are sold separately.
Special Order - ETA 2-4 Weeks. We order this in for you from the UK distributor, so please allow 2 to 4 weeks for it to reach you.




