STV40 recoil spring source?

[Jolly Rogers]

I have a friend at work that recently acquired a Russian STV 40 semi automatic rifle. Gun is in nice shape but on field striping was found to have a ruined recoil spring.
Question is the normal spring companys don't list a replacment spring so does anyone know where to find a replacment recoil spring? Sarco is no help also.
Thanks in advance.
Joe

 

[Eric F]

http://www.buymilsurp.com/recoil-spring-tokarev-pistol-tt-33-p-3357.html oops thats for a pistol, they do have svt40 parts though.