The BMD-3M vehicle is equipped with a new universal fighting compartment installed on the modified BMD-3 vehicle chassis.

The BMD-3M vehicle armament system comprises a 100mm gun-launcher with an autoloader of guided and unguided HEF artillery projectiles, a 30mm automatic gun firing HEFI, APT and APDS projectiles, a 7.62mm machine gun and a modern fire control system with gunner's integrated day/night sight, commander's panoramic TV sight, digital computer, tracker and means to automatically prepare data for firing at unobserved targets.

The BMD-3M vehicle armament ensures stationary, mobile and afloat fire and defeat of modern tanks at a range of up to 5,500 m, unsheltered and entrenched manpower and fortifications at a range of up to 7,000 m, including unobserved, antiarmor-capable and other pinpoint targets as well as aircraft and helicopters at a range of up to 4,000 m.