Description
Fine-Tune Your GBBR Power: Crimson NPAS for TM MWS / Double Eagle / Salvo
Take control of your GBBR’s power output with the Waldo Dynamics Crimson NPAS for MWS. Designed in collaboration with Bristol Based Airsoft, this compact upgrade allows you to fine-tune the FPS and Joule output of compatible MWS-spec gas blowback rifle nozzles using a simple 1.5mm hex key.
Whether you are adjusting your rifle for different site limits, changing BB weights or dealing with variations in gas pressure and temperature, the Crimson NPAS gives you a straightforward way to make controlled adjustments to your GBBR. Once installed, the adjustment can be made through the front of the nozzle without needing to replace the NPAS itself.
Technical Specifications
| Specification | Details |
|---|---|
| Product | Crimson NPAS for MWS |
| Manufacturer | Waldo Dynamics |
| System | GBBR NPAS |
| Adjustment Tool | 1.5mm hex key |
| Adjustment | Clockwise reduces energy output, counter-clockwise increases energy output |
| Material | Reinforced nylon polymer |
| Colour | Crimson Red |
Compatible MWS Nozzles
The Crimson NPAS has been developed to work with a wide range of Tokyo Marui MWS-spec stock and aftermarket nozzles, making it a versatile choice for players running upgraded or mixed-component GBBR builds.
- Tokyo Marui
- Classic Army
- Unicorn
- Dynamic Precision
- Double Eagle
- Salvo Precision
- Gunsmodify
- T8
- Prowin
Key Features & Performance
- Fine-tune your GBBR’s FPS and Joule output
- Simple adjustment using a 1.5mm hex key
- Adjustment can be made through the front of the installed nozzle
- Compatible with a wide range of MWS-spec nozzles
- Suitable for both stock and aftermarket nozzle setups
- Helps adapt your rifle to different site power limits
- Useful when changing BB weight or gas pressure
- Reinforced nylon polymer construction
- Distinctive Crimson red finish for easy identification
The “Pro” Take
An NPAS is one of those upgrades that becomes particularly useful once you start tuning a GBBR properly. Rather than being locked into the output provided by a fixed nozzle setup, the Crimson NPAS gives you a practical adjustment point for controlling the amount of energy produced by the rifle.
The big advantage here is compatibility. Waldo Dynamics designed the Crimson NPAS around a broad selection of MWS-spec nozzles, covering popular options from Tokyo Marui, Double Eagle, Gunsmodify, Dynamic Precision, T8 and others. That makes it particularly useful for custom MWS builds where the nozzle may not be completely standard.
The bright Crimson finish is also more than just a bit of colour. It makes the component easy to identify when working on your rifle or sorting parts on the tech bench.
UK Spec & Site Performance
The Crimson NPAS is particularly useful for UK players because airsoft sites can have different FPS and Joule limits depending on the type of rifle and game being played. Being able to adjust your GBBR gives you greater flexibility when moving between sites, but the rifle should always be chronographed after making an adjustment.
Remember that an NPAS does not automatically make a rifle compliant with every site limit. Always check the individual site’s current rules, use the BB weight specified by the site when required, and chrono the finished rifle before playing.
Friendly FAQ
What does an NPAS do?
An NPAS allows you to adjust the gas flow and therefore fine-tune the energy output of a compatible GBBR. This allows the rifle’s FPS/Joule output to be adjusted rather than being fixed by the nozzle configuration.
How do I adjust the Crimson NPAS?
Once installed, remove the bolt from the GBBR and use a 1.5mm hex key through the front of the nozzle. Turning the adjustment clockwise reduces energy output, while turning it counter-clockwise increases energy output.
Do I need to remove the NPAS every time I adjust it?
No. The Crimson NPAS is designed to be adjusted through the front of the nozzle once installed, making changes considerably more convenient.
Which nozzles does it fit?
It is designed for a wide range of MWS-spec nozzles, including Tokyo Marui, Classic Army, Unicorn, Dynamic Precision, Double Eagle, Salvo Precision, Gunsmodify, T8 and Prowin.
Is the Crimson NPAS suitable for an upgraded MWS?
Yes. Its broad nozzle compatibility makes it well suited to custom MWS builds using a mixture of stock and aftermarket components.
Can I adjust it to meet my site’s power limit?
The NPAS can be used to tune the rifle’s output, but you should always chrono the complete rifle using the site’s required BB weight and follow the site’s specific power limits and testing procedure.
Do I need any special tools to install it?
Installation requires some basic airsoft technical knowledge and tools. Adjustment itself requires a 1.5mm hex key. Take care not to completely unscrew the adjustment screw when making changes.
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