from Tonawanda, NY United States
I installed this spring in both a new Maverick and my old FuryFire.
Within a day, the trigger catch for the Maverick was too worn away too much to be of any use. This was with a replacement catch spring. So it provides an upgrade to power, but finding a way to reinforce the catch is needed.
In my Nerf FuryFire the spring works beautifully. Be sure to pad your plunger and reinforce the space behind the spring.