The TAPP Green Gas Drum is a 400-round green gas drum (AW Custom) for your VFC M4 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 M4 | Direct Native Fit | Purpose-built for the VFC M4 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. |
| APFG MCX (SURG / Spear LT / Rattler) | Direct Native Fit | APFG MCX models run on VFC M4/VMAG-style V2/V3/V4 gas magazines, so this adapter installs and seals the same way as on a VFC M4. 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. |
Also compatible with other rifles built on the same VFC AR15/M4/HK416 magazine pattern: Umarex (Elite Force), Cybergun, DNA (incl. T65), VFC VR-16, VFC SR-16, VFC Mk12, VFC Mk18, VFC CAR XM177, VFC T91, VFC FN FNC, and BCM x VFC.
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: KJW M4, KWA/KSC M4, GHK M4/MK18/G5, WE-Tech Open Bolt M4/M16/416/XM177/MK18/MSK/L85/SCAR-L, WA/WOC/GE/KA/Matrix/Inokatsu, SRC ZAROS SR4, G&G MGCR
Want to compare every option? Use the VFC M4 Adapter Builder.
