Upgrade your AEG and increase overall velocity with this high quality spring option from LayLax Prometheus. This nonlinearMS135 spring upgrades the FPS of your AEG from approximately 420 FPS to 440 FPS, based on the AEG itself. Constructed from high quality metal, this spring is long lasting and reliable even in the most powerful of gearboxes. If you’relooking for a simple upgrade to gain more power and an edge over other players, LayLax Prometheus has just the thing for you.

Features:

• MS135 Spring
• Increases Velocity From 420 FPS to 440 FPS