The introduction of the 9K37M1-2 system for the land forces also marked the introduction of a new naval variant: the "Ezh", which carries the NATO reporting name SA-N-7B 'Grizzly' (9M317 missile). was exported under the name "Shtil" and carries a NATO reporting name of SA-N-7C 'Gollum' (9M317E missile), according to Jane's catalogue.[8] The 9K317 incorporates the 9M317 missile to replace the 9M38 used by the previous system. A further development of the system was unveiled as a concept at EURONAVAL 2004, a vertical launch variant of the 9M317, the 9M317ME, which is expected to be exported under the name "Shtil-1". Jane's also reported that in the Russian forces it would have a name of 3S90M ("Smerch") (Russian: "?????", English translation: 'tornado').

Picture of 9M317