HPA Supply Hose for WE and KJW Gas Pistols
How to reliably run a gas pistol even in winter, without leaks and with consistent performance? This coiled HPA hose with adapter by MANCRAFT is a solution for WE and KJW gas pistol owners looking to replace Green Gas with HPA power. The adapter screws in place of the fill valve directly into the magazine and, thanks to its brass body with seal, provides reliable hose connection. The connector uses the MICRO QD (4 mm) standard, meaning it is not compatible with US/EU QD fittings. Due to airflow limitations, the hose is not suitable for full-auto operation. For more information about HPA systems, read our article How to Build an HPA Setup.
Key Features
External power for GBB pistols:Connects the pistol to HPA or CO2 for stable performance.
Ideal for winter use:Green Gas loses performance in cold, HPA remains reliable.
MICRO QD connector:Connects to 4mm HPA systems, not compatible with US/EU fittings.
Maximum pressure:Up to 290 PSI without damage risk.
Expandable length:Coiled hose extends up to 100 cm.
Technical Specifications
Hose type: Coiled HPA hose for GBB pistols
Compatibility: WE / KJW magazines with M5 thread
Connector: Micro QD (4 mm)
Hose length: Up to 1 m (coiled)
Maximum pressure: 290 PSI
Supported gases: HPA and CO2
Mounting: Replaces magazine fill valve
Package Contents
Coiled HPA hose
Adapter (brass fitting with M5 thread)






