The EPES HPA Adapter for TM/TW unlocks HPA-powered performance in your Tokyo Marui or Tanaka Works GBB replica. This adapter bridges your gas blowback platform and HPA tank, offering consistent muzzle energy and round-count stability across temperature fluctuations.
Key Features
- Foster Series 2 QD socket – industry-standard quick-disconnect compatibility
- M6 thread – direct fit to TM and TW replicas without modifications
- Stainless steel construction – corrosion resistant and durable
- Two-way connection design – pressure loss after HPA system disconnect (expected behaviour)
- Compatible with EPES self-closing valves – upgrade path for tuning
Real-World Use Cases
HPA conversion is popular among milsim players seeking consistency in semi-auto CQB, and pistol-primary skirmishers who demand zero-variance shot-to-shot energy. The adapter suits both outdoor and indoor sites where gas performance can be unreliable in cold conditions.
Technical Specifications
- Thread Standard: M6
- QD Socket: Foster Series 2
- Material: Stainless steel
- Compatibility: Tokyo Marui GBB, Tanaka Works GBB
Compatibility & Upgrades
Confirm your replica’s nozzle thread before purchase. Works with standard HPA regulators and tanks featuring Foster Series 2 couplers. EPES self-closing valves are recommended for tuning and minimising gas bleed.
UK Legal & Site Notes
HPA conversion does not alter the replica’s legal two-tone finish or appearance. Check your site’s chrono policy before match day – some venues cap muzzle energy regardless of propellant source.
Shop the EPES HPA Adapter for TM/TW at Airsoftdirect UK today.










