The B-4 203mm Howitzer Trailer model, designed by Bergman, is a highly detailed and precise 15mm scale replica of the Soviet heavy artillery piece used during World War II.
 
The B-4 203mm howitzer, also known as the "Stalin's sledgehammer," was a significant piece of Soviet artillery during World War II. First produced in 1931, it played a crucial role in various major battles, providing heavy bombardment capabilities against fortified positions, bunkers, and enemy infrastructure. Its immense firepower earned it a fearsome reputation on the battlefield.
 
Credit for this exceptional 3D model goes to M_Bergman