One of the key breakthroughs of the Barvinok-K program is the complete removal of foreign-made components, making the munition fully domestically produced—an important step for Ukraine’s defense industry amid wartime supply constraints.

The shell uses a semi-active laser guidance system, allowing its flight path to be corrected during the terminal phase of engagement. In practical terms, this means the projectile homes in on a laser-designated target, enabling significantly higher accuracy than conventional unguided artillery rounds.

Also see

https://en.defence-ua.com/weapon_and_tech/ukrainian_laser_guided_artillery_rounds_are_being_tested_for_the_armed_forces_capabilities_and_key_nuances_of_the_barvinok_program-16933.html