Identify this guide rod/recoil spring system.

[onestep]

I am unsure if this thread belongs here or in the SA forums as I do not know if this is a factory part or not, I do not believe so.

I need help identifiying this guide rod/recoil spring system on my new to me SA Defender.

I am looking for manufacturer and any other info you can give me.

Thank you,

Drake

http://www2.mediafire.com/imgbnc.php/8445ff0667a469908f07b46e0da198765g.jpg

http://www3.mediafire.com/imgbnc.php/b6b36cb34a49f8fac48caf91a8b4ad515g.jpg