The 2S25 Sprut-SD uses the modified chassis of the BMD-3 airborne combat vehicle. It is powered by a 2V-06-2S diesel engine, developing 510 horsepower. The vehicle has a hydropneumatic suspension with adjustable ground clearance. The Sprut-SD is fully amphibious. On the water, it is propelled by two waterjets. The vehicle is sea-worthy up to Sea State 3. It can also fire from the main gun in a limited traverse range when afloat. This light tank can be airdropped with the crew on board.
The Sprut-SD is armed with a fully-stabilized 125 mm smoothbore gun, fitted with an autoloader. This gun is also used to launch anti-tank guided missiles in the same manner as ordinary projectiles. This feature is common to all modern Russian MBTs. Laser-guided anti-tank missiles have a range of effective fire of up to 5 km. Missiles can also be used against low-flying helicopters. A total of 40 rounds including missiles are carried for the main gun. An autoloader holds 22 of them. The 2S25 Sprut SD has a rate of fire of 7 rounds per minute. The vehicle is fitted with a modern fire control system. The secondary armament consists of a single coaxial 7.62 mm machine gun.
The vehicle has a crew of three, including a commander, gunner, and driver.