Jaeger Precision show their Jaeger Precision Tokyo Marui MWS Downgrade Valves in this video. In the package, one will find four valves: S, L, VL, and EL, which serve as direct replacements for the original valve. The S valve has power similar to the standard valve. The L valve is a low-power valve that reduces a standard rifle's power from 1.3 joules to approximately 1 joule. The VL valve is a very low-power valve, reducing the power to roughly 0.9 joule. The EL valve is an extremely low-power valve, dropping the power to about 0.8 joule. It's important to note that there are many variables in parts, inner barrel diameters and lengths, hop-up rubbers, etc. The figures provided are not guaranteed but serve as a rough guide based on testing and the experiences of other airsoft technicians. It's strongly recommended to watch the video for more information.