Jaeger Precision TM MWS NPAS Adjustable Valve

The Jaeger Precision NPAS gives Tokyo Marui MWS owners an easy way to fine-tune power. Jaeger Precision's earlier downgrade valves worked well but offered no adjustment; this valve is adjusted with an Allen key through the nozzle, so you can dial in your setup without changing parts.

It fits straight into Tokyo Marui and GunsModify nozzles, and now also works with clone nozzles such as Double Eagle and Salvo Precision. Results vary between setups, as gas, barrel length, magazine and BB brand all affect performance.

Key specs

• Fits: Tokyo Marui and GunsModify MWS nozzles; also Double Eagle and Salvo Precision nozzles
• Material: high-strength nylon with hardened steel grub screws
• Adjustment: 1.5mm Allen key through the nozzle
• Supplied set roughly to maximum

Turn the Allen key in small steps so the grub screw is not wound loose or tightened through the valve, and chronograph your rifle after every adjustment. Some Double Eagle nozzles have slightly different tolerances, which can make the valve a tight fit; lightly sanding or filing the widest part of the valve fixes this. Other brands may also need slight modification if the fit is tight. If you are unsure, a professional fitting is advised.

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