LayLax Prometheus Non-Linear Spring MS120

Upgrade your AEG and increase overall velocity with this high quality spring option from LayLax Prometheus. This non-linear MS120 spring upgrades the FPS of your AEG from approximately 380 FPS to 410 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 your looking for a simple upgrade to gain more power and an edge over other players, LayLax Prometheus has just the thing for you. Features: MS120 Spring Full Metal Construction Increases Velocity From 380 FPS to 410 FPS For Use in All Airsoft AEGs