S&T Dynamics 120mm mortar system is a state-of-the-art weapon system developed with 100% pure domestic technology to replace the existing 4.2-inch mortar system. It is equipped with an automatic fire command system based on the fire control system and a barrel that can rotate 360 ​​degrees, enabling fast and accurate operation even in various battlefield environments. The range has been increased by 2.3 times and firepower 1.5 times compared to the 4.2-inch mortar, and it is lighter and more con