TOS-1 Buratino (Russian: тяжёлая огнемётная система [ТОС-1], romanized: Tyazhyelaya ognemyetnaya sistema [TOS-1], Heavy Flamethrower System) is a Soviet 220 mm 30-barrel (original system, Object 634 or TOS-1M) or 24-barrel (Object 634B or TOS-1A Solntsepyok) multiple rocket launcher capable of using thermobaric warheads, mounted on a T-72 / T-90 tank chassis.

TOS-1 was designed to attack enemy fortified positions and lightly armored vehicles and transports, particularly in open terrain.

[2][needs update] The idea of a heavy short-range MLRS to launch rockets equipped with incendiary and thermobaric warheads arose in the late 1970s.

The large mass of the launcher, combined with the short range of rockets launches (3,500 metres, 3,800 yards), forced an increase in the level of armor and use the chassis of the T-72 main battle tank.

In 2003, the improved TOS-1A Solntsepyok ("Scorching sunlight") system entered service with the range extended to 6 kilometres (6,600 yd) and a better ballistic computer.

[3] In March 2020, Russia introduced a new rocket for the TOS-1A with a range of 10 kilometres (11,000 yd), achieved in part by weight and size reductions of a new fuel air explosive mixture in the warhead, while also increasing its power.

Minimum range is extended from 400 to 1,600 metres (440 to 1,750 yd), so the shorter-range M0.1.01.04M rocket will be retained for close combat environments.

[4] In 2018, Russian NBC Protection Troops received 30 TOS-1A Solntsepyok (Sunburn) 220 mm multiple rocket launchers.