Spring Guide KPP V2 QD

With this KPP V2 QD spring guide, you can easily adjust the FPS of your AEG replica. 

By means of an Allen screw that is located in the shaft of the spring guide, it is possible to make the spring guide longer, and thus put the spring under higher pressure. This will increase the muzzle energy and muzzle velocity of the replica.

Thanks to this mechanism in the KPP V2 QD spring guide, you can fine-tune the replica in an instant.