Action Army VSR-10 M150 Spring

The Action Army VSR-10 M150 Spring is specially developed for the VSR-10 airsoft Sniper Rifle and can serve as an upgrade over the standard spring.

We are regularly asked which spring provides which fps/joule which is very difficult to estimate because it does not only depend on the spring what this value will be after fitting this spring. The airseal of the cylinder, piston and pistonhead, among others, also play a large part in this.