The brand new missile carrier ship, manufactured by the Zelenodolsk Shipyard, is a multi-purpose river-sea type corvette designed for anti-surface warfare. It is primarily meant for protecting Russia's offshore economic zones.
The first two BM ships, Grad Sviyazhsk and Uglich, were commissioned in 2014. They were assigned to the Caspian flotilla and are stationed in the Caspian Sea.
Buyan-M class corvette Grad Sviyazhsk [Project 21631] fires Kalibr [SS-N-27] missile via eagle_rost pic.twitter.com/DfmJHjfSmA— Missilito (@Missilito) 25 апреля 2014
In total, the Russian Navy will receive nine Project 21631 corvettes.