Upgrading vsr10 series
 

I want to upgrade my vsr10 but all i want to do is increase the fps. I just want a better spring what are the parts necessary so my gun wont break im going to but a laylex 150 spring thanks.

There's a whole thread on how-to upgrade the VSR 10.

http://www.airsoftcanada.com/showthread.php?t=37455

Search VSR10, VSR and you'll get back tons of stuff.

In short...if you're not going to read all the other stuff...just stick the 150 in it and replace whatever breaks as it breaks.