The TAPP Green Gas Drum is a 400-round green gas drum (AW Custom) for your VFC HK417 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 |
|---|---|---|
| VFC HK417 | Direct Native Fit | Purpose-built for the VFC HK417 magazine well and feed geometry. Fine-tune the adjustable plunger height to establish a positive compression seal against the loading nozzle, maximising gas efficiency and feed consistency while preventing mechanical drag during the cycle. |
| VFC SR25 / M110 / SCAR-H MK17 / APFG XM7 / FAL | Direct Native Fit | These share the same VFC large-frame 7.62 magazine shell and feed geometry as the HK417 platform, so this adapter installs and seals the same way. |
Also sold as dedicated listings: VFC SCAR-H MK17/APFG XM7 HPA Adapter/Drum and VFC FAL HPA Adapter/Drum — all four use the same magazine, so any of these listings will fit any of these platforms.
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: VFC SCAR-H MK17/APFG XM7, VFC FAL, WE SCAR-H
Want to compare every option? Use the VFC HK417 Adapter Builder.
