Worked exactly as I expected. Gave me a good boost in fps, some of my shots exceeding 200fps, mostly hanging around 175fps though. Better air seal could fix the discrepancy.
this spring is great. the instalation was really easy and It obviously made my nexus pro shoot much harder. I don't have a chronograph, but it allows my nexus pro to shoot from the middle of the road to my backyard
Very good power and easy prime
This upgrade spring works great in this blaster. This upgrade spring makes this blaster shoot almost over 300 feet with me also greasing up the plunger system. Make this blaster work even better with all the other upgrades I have done to this blaster. Great Product!
this spring is very powerful and does not require much force to prime. I put it in my stryker and it works great :)