BRDM-1 2P27 AT-1 Snapper Open and closed

BRDM is an initialism for Boyevaya Razvedyvatelnaya Dozornaya Mashina, (RU Боевая Разведывательная Дозорная Машина), literally "Combat Reconnaissance Patrol Vehicle". The BRDM is a four-wheeled amphibious vehicle which is very lightly armoured by today's standards. Both versions were produced in the Soviet Union and other Eastern Bloc countries. Both versions came in an ATGM variant. The BRDM-2 also came as a command vehicle and as an air defence vehicle.

The BRDM-1 (also known as the BTR-40P) first appeared in 1959, and was in production until 1966. Total production was around 10,000 vehicles; less than 600 remain in the reserves of a number of countries. It was armed with a pintle-mounted heavy machine gun. The initial version of the vehicle, the Model 1957, had an open roof, but the standard production model, the Model 1958, had a roof with twin hatches.

The vehicle was used as the basis of the 2P27 anti-tank missile launcher, using AT-1 Snapper missiles mounted in a retractable launcher.