BTR-40 converted into an armoured car armed with a 40 mm gun in an angular turret on top of the superstructure inside the troop compartment, it also has four smoke grenade dischargers on both sides of the hull. It has a searchlight on the left hand side of the hull.

BTR-40 – Armoured 4×4 truck (1950s) based on GAZ-63 four wheel drive truck.. BTR-40P – Another name for the BRDM-1.; BTR-40PB – Another name for the BRDM-2.; BTR-50 – Tracked APC (1954) based on the PT-76 amphibious light tank chassis.

The BTR-40 is a Soviet non-amphibious, wheeled armored personnel carrier and reconnaissance vehicle. It is often referred to as the Sorokovka in Soviet service. It is also the first mass-produced Soviet APC. It was eventually replaced in the APC role by the BTR-152 and in the scout car role by the BRDM-1.

The latter and its successors replaced in practice the BTR-40. BTR-40A This was the main SPAAG version of the BTR-40, introducing the twin ZPTU-2 14.5 mm twin anti-aircraft gun (2400 rounds) fitted in a rotatable turret inside the rear compartment. In this version, the pistol ports were eliminated. The same system was later adopted for the BTR-152.

The BTR-40's armour is from 6 mm to 8 mm thick which gives it protection from small arms fire and the shell splinters of its time, but does not protect it against modern artillery fragments and .50-calibre machine gun fire. The BTR-40-series tyres are not protected by armour. They are particularly vulnerable to puncture from fire of all kinds.

The BTR-40 is an early Cold War era armored personnel carrier of Soviet origin. It was developed shortly after World War 2 and is based on the GAZ-63 utility vehicle. The BTR-40 was one of the first mass produced armored personnel carriers. It was supplemented and replaced by the BTR-152 and BTR-60 since the 1960's.

2023年7月16日 · The BTR-40 was utilized concurrently with the newer BTR-152 and BRDM series cars during its time with the Soviet military (the BTR-152 was its direct replacement). As the basic BTR-40 design lacked any protection against chemical attacks, the "BTR-40Kh" was developed with inherent Nuclear, Biological, Chemical (NBC) protection.