Works perfectly. Increases fps be a noticeable amount.
A
Andy R.
Pretty good spring
Good spring, fits perfectly into the plunger tube.
G
Gabe J.
spring is not an upgrade, shoots softer than the original
L
Lachlan C.
Well though upgrade
No increase without the removal of AR, but works very well with AR removal.
E
Elias
Not an upgrade!
I don't recomend to buy it, because it's not really an upgrage.
If you are looking for an replacement, for example if you lost your (?), than you have the same power with that spring.