The TAPP Green Gas Drum is a 400-round green gas drum (AW Custom) for your VFC/Cybergun FNX-45 that bolts on with no HPA setup.
Spec card
| Type | Green Gas Drum |
|---|---|
| Feeds from | Green gas (GBB) drum |
| BB capacity | 400 |
| Overall profile | Large |
| Recommended mags | AW Custom |
| Best for | Plug and play, no HPA setup needed |
Color options
- Black: 400-round AW Custom green gas drum in black
- Red: 400-round AW Custom green gas drum in red
- Green: 400-round AW Custom green gas drum in green
- Green/Black: 400-round AW Custom green gas drum in green/black
- AW Adapter Only: adapter only, for an AW green gas drum you already own
Compatibility
| Brand / Platform | Compatibility Verification | Tuning & Adjustment Notes |
|---|---|---|
| Cybergun / VFC FNX-45 Tactical GBB Pistol Series | Direct Native Fit | Direct OEM factory standard for the VFC-manufactured Cybergun FNX-45 Tactical gas blowback platform. Fine-tune the adjustable gasket height to establish an airtight compression seal against the loading nozzle seal, ensuring maximum gas efficiency and smooth recoil recovery without creating drag on the returning heavy slide assembly. |
| Tokyo Marui FNX-45 / EMG FN 509 / Third-Party Pistol Lines | NOT Compatible | The Tokyo Marui FNX-45 model utilizes a completely different internal gas engine, proprietary gas router shape, and distinct valve placement. Additionally, other FN-licensed platforms (like the FN 509) and standard pistol lines utilize distinct magwell dimensions incompatible with the oversized VFC FNX-45 magazine architecture. |
What's in the box and how to install
- Plug and play: no pulling valves or feed lips from stock mags.
- Materials: standard body is Nylon PA12. Carbon Fiber is available (3x stiffness, up to 38% higher tensile strength than Nylon 12).
- Made in the USA by TAPP Airsoft.
- Install: insert with the bolt or slide locked back.
- Warranty: 30-Day Warranty + Lifetime Support.
More options
Also available for: TM FNX-45, EMG FN 509, TM FN57
Want to compare every option? Use the VFC/Cybergun FNX-45 Adapter Builder.
