A modular HPA adapter that converts compatible WE Open Bolt GBB rifles to use an external HPA system with Airsoft M4 AEG magazines.
 
Product Features:
Compatible with WE Open Bolt M4, SCAR-L, 416 and other WE Open Bolt rifle platforms.
Compatible with Airsoft M4 AEG magazines.
Plug and play installation with valve, feed lips and gas router pre-installed.
Injection moulded polycarbonate M4 magazine well.
NBR rubber gas router.
Includes interchangeable magazine fitment shims.
Supplied with a US Foster HPA quick disconnect fitting.
Compatible with interchangeable AIRTAC modular magwells.
Recommended operating pressure: 90-150 PSI.
Maximum operating pressure: 150 PSI.
Integrated BB retention system to minimise BB loss during magazine changes.
 
The AIRTAC WE M4 to M4 HPA Adapter is a modular conversion adapter designed for compatible WE Open Bolt gas blowback rifle platforms. It replaces the standard gas magazine with an adapter that allows the replica to be powered by an external High Pressure Air system while feeding from Airsoft M4 AEG magazines.

Designed as a plug and play solution, the adapter is supplied with the valve, feed lips and gas router already installed, removing the need to transfer components from an existing magazine. Magazine fitment shims are included to help optimise magazine compatibility across a wide range of Airsoft M4 AEG magazines.

The modular construction allows the magazine well to be exchanged for other AIRTAC magwell configurations, providing additional flexibility without replacing the complete adapter. An integrated BB retention system helps reduce BB loss during magazine changes, while the supplied US Foster quick disconnect fitting provides a standard HPA connection.

The adapter is intended for operation between 90 and 150 PSI, with a maximum operating pressure of 150 PSI.