The RGT-27S is a Ukrainian-made thermobaric hand grenade. These grenades, weighing no more than 600 grams, create a fire cloud of at least 13 m³ for two seconds, with a temperature of 2500 degrees in the middle. These grenades were known to have been used during the Russian invasion of Ukraine. In particular, in February 2023, a video of a grenade being dropped from a DJI Mavic 3 drone was released.