NPAS
Control your power – NPAS for precision tuning of your GBB
An NPAS (Negative Pressure Adjustable System) is an essential upgrade for anyone who wants to fine-tune their gas blowback replica. This small but powerful system allows you to adjust the gas output and therefore the FPS of your airsoft replica without permanent modifications. Perfect for those who play both indoors and outdoors or like to keep control over their setup.
What are the advantages of an NPAS?
With an NPAS, you can quickly and accurately control how much pressure is released through the nozzle system. This allows you to adjust your replica to the type of field, the permitted FPS limit and your own preferences. Ideal for players who want to switch flexibly between CQB and field scenarios.
What can you find in this category?
- Adjustable NPAS units – suitable for various GBB platforms such as Hi-Capa, Glock, M4 GBBRs and more
- Nozzles with integrated NPAS – ready to install for brands such as WE Airsoft and KJW
- Upgrade kits with tools – including adjustment tools for easy installation
- Compatible with popular GBB brands such as WE, KJW, TM, RA-Tech, TTi Airsoft
Who is it suitable for?
- Players who regularly switch between indoor (lower FPS) and outdoor (higher FPS)
- Technical airsofters who want to fine-tune their replica for competitive play
- GBB users looking for maximum control without an external HPA setup
- Organisers and field admins who want to ensure consistency within rules
Fine-tune your replica – with an NPAS, you're always ready for any mission.

- Visit our shop in Capelle aan den IJssel
- Returns within 14 working days
- Free shipping from €99 (NL and BE)
- Visit our shop in Capelle aan den IJssel
- Returns within 14 working days
- Free shipping from €99 (NL and BE)
- Visit our shop in Capelle aan den IJssel