Worker Upgrade Spring 1.8 for Nexus Pro / Prophecy

Upgrade your Dart Zone Max Nexus Pro or Worker Prophecy blaster with this 1.8 Upgrade Spring from Worker. This Upgrade Spring lets your Nexus perform at around 175 FPS with short darts. This is a powerfull spring, not for beginners! Only compatible with the Prophecy when using the Thin Stem Plunger Head.