The EPES HPA Adapter MK2 is a precision HPA conversion component engineered for airsoft skirmishers and milsim players running high-pressure air systems. This next-generation adapter bridges your HPA tank to TM/TW-threaded gearboxes using industry-standard Foster US quick-disconnect couplings, enabling rapid hose changes and reliable gas delivery.
Key Features
- Foster US QD coupling – industry-standard quick-disconnect for instant tank swap capability
- Stainless steel construction – corrosion-resistant and durable in field conditions
- Blackened finish – professional appearance and protection against wear
- TM/TW thread compatibility – fits Tokyo Marui and equivalent gearbox platforms
- Second-generation design – refined structural improvements from the original MK1 version
Real-World Use Cases
Ideal for HPA-converted AEGs and specialist platforms where consistent performance and reliability matter. Works seamlessly with popular TM-based platform builds, supporting milsim operations, skirmish gameplay, and technical enthusiasts upgrading to high-pressure air systems. The Foster coupling standard ensures compatibility across multiple tank suppliers and regulators.
Technical Specifications
- Brand: EPES
- Model: HPA Adapter MK2
- Thread: TM/TW
- Coupling Type: Foster US QD
- Material: Blackened stainless steel
- SKU: E101-TM
Compatibility & Upgrades
Compatible with Tokyo Marui and TW-equivalent gearbox housings. Pairs with any HPA regulator featuring a Foster US male connector and standard air hose assemblies. Requires separate HPA tank, regulator, and line – verify your existing setup before purchase.
UK Legal & Site Notes
HPA adapters are unrestricted in the UK; however, check your local airsoft site’s rules on HPA systems before fielding. Most UK sites welcome HPA rigs when properly regulated to site FPS limits. Always test output pressure and velocity before play.
Upgrade your TM-platform build with reliable HPA conversion. Order the EPES HPA Adapter MK2 today.










