It is being introduced into service with the post-Soviet Russian Air Force since 2020.
[1] KAB stands for "Корректируемая Авиационная Бомба" which means "Managed (corrected) aircraft bomb" and refers to high-precision weapons.
[2][3] The KAB-250 is 10.5 ft (3.2 m) long and weighs 565 lb (256 kg).
Its warhead makes up 365 lb (166 kg) of the total weight, of which 200 lb (91 kg) is blast-effect high explosive.
[3] It has a noticeable, egg-shaped form and has been integrated on and dropped by Sukhoi Su-34 on Islamic State of Iraq and the Levant targets from 5000m altitudes.