The EPES CNC Duralumin H+PTFE Double O Ring Nozzle 20.4mm is a precision-engineered gearbox component designed to elevate your AEG’s air seal and reliability. This is not merely a replacement part—it’s a tuning upgrade that addresses one of the most common performance bottlenecks in stock builds.
Key Features
- Double O ring design – dual sealing surfaces maximise air retention and reduce blowback
- CNC-machined duralumin construction – resists wear and maintains tolerances over thousands of rounds
- H+PTFE material blend – self-lubricating surfaces reduce friction and extend service life
- 20.4mm bore – compatible with most standard AEG gearboxes (V2, V3)
- Premium quality-to-cost ratio – professional upgrade without premium price
Real-World Use Cases
Whether you’re running a classic M4 build, tuning a DMR platform, or maintaining a workhorse CQB rifle, this nozzle addresses real performance issues. Skirmishers upgrading from stock parts will notice tighter groupings and more consistent muzzle energy. Milsim players benefit from enhanced reliability over extended gameplay. Target shooters appreciate the precision machining and repeatable performance.
Technical Specifications
- Bore diameter: 20.4mm
- Material: CNC-machined duralumin with PTFE coating
- Sealing: double O ring
- Compatibility: V2, V3 gearboxes (most common AEG platforms)
Compatibility & Upgrades
This nozzle is a drop-in replacement for standard plastic nozzles in compatible gearboxes. Pair it with a quality piston head, cylinder head, and tappet plate for a comprehensive air seal overhaul. Works with all standard AEG inner barrels and hop chambers.
UK Legal & Site Notes
This is a gearbox component with no legal restrictions. Use on any UK airsoft site that permits standard AEGs. Installation requires basic gearbox disassembly; if unfamiliar, consult a technician or our guides.
Upgrade your AEG’s air seal today and feel the difference in consistency and range. Order your EPES nozzle from Airsoftdirect UK and get it in stock now.








