A special technique to study the impact of the discharge on the ground robotic complex equipped with small arms in this article is proposed. The development of the technique is based on mathematical modeling of the dynamic system of the robotic complex. The magnitude and nature of dynamic loads on the ground robotic complex are determined. The experimental sample of the ground robotic complex equipped with small arms has been developed by the authors. Measures to ensure a stable position of the complex and methods of compensation for uncontrolled changes in the position of the complex under dynamic loads are proposed. To study the processes of firing, their individual components are considered: the problem of internal ballistics, the process of movement of the retractable parts of the barrel, dynamic loads on the complex. The conducted study gives the chance to create highly effective samples of special equipment. These are, in particular, military ground-based robotic complexes, which will be competitive by increasing the efficiency of their operation.