The EPES CNC Duralumin H+PTFE Double O Ring Nozzle is engineered for players who demand durability and consistency in their upgrade components. Built from aircraft-grade duralumin and fitted with dual PTFE O rings, this 36mm nozzle addresses one of the most common weak points in airsoft gearbox design: the air seal between bucking and cylinder.
Key Features
- CNC-machined duralumin construction – rigid, lightweight, corrosion-resistant
- Dual O ring design – maximises air seal efficiency and reduces wear
- 36mm bore – universal compatibility with most AEG cylinder and bucking setups
- PTFE coating – reduces friction and extends component lifespan
- Direct drop-in replacement – no modification required for standard gearboxes
Real-World Use Cases
Whether you’re fine-tuning a high-ROF M4 build, optimising a precision DMR, or repairing a worn gearbox, a quality nozzle is fundamental. The double O ring design maintains consistent air pressure through sustained fire—critical for accuracy over distance and reliability during extended skirmishes. Players upgrading from stock plastic nozzles often report tighter groupings and fewer gas leaks.
Technical Specifications
- Bore diameter: 36mm
- Material: duralumin (aircraft-grade aluminium alloy)
- O rings: dual PTFE
- Manufacturing: CNC precision machined
- Installation: direct fit, no shimming required
Compatibility & Upgrades
This nozzle suits most standard AEG gearboxes (Version 2, 3) with 36mm cylinder compatibility. Pair it with a quality bucking (such as Prometheus or Guarder) and a polished inner barrel for measurable improvements in FPS consistency and grouping. Always check your specific gearbox specifications before purchase.
UK Legal & Site Notes
As an internal component, this nozzle poses no legal concerns and is suitable for all UK skirmish and milsim sites. Installation is straightforward for anyone comfortable working inside a gearbox; if you’re unsure, seek help from an experienced tech.
Upgrade your gearbox’s core performance today. The EPES CNC Duralumin Nozzle is a solid investment in reliability and consistency.










