The Russian defense ministry signed with the company Almaz-Antej three-year contract on delivery of air defense system S-300V4 (SA-23 Gladiator), which has a complementary complex of the Russian system of air defence including -400. System S-300V4 is a modernized version of the systems S-300V and S-300VM.
Source:
en.rian.ru
ria.ru.
Source:
en.rian.ru
ria.ru.