The TAPP Green Gas Drum is a 400-round green gas drum (AW Custom) for your KWA M11 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 |
|---|---|---|
| KWA / KSC M11A1 NS2 / System7 GBB Series | Direct Native Fit | Direct OEM factory standard for KWA's high-rate-of-fire M11A1 platform. Fine-tune gasket height to form a complete compression seal against the lightweight System7 cylinder nozzle without creating friction that slows down high-RPM bolt travel. |
| HFC / WELL / Legacy KSC M11A1 GBB Series (Pre-NS2) | NOT Compatible | HFC, WELL, and legacy pre-NS2 KSC M11 models utilize older gas system architecture with completely different release valve placements, output router seal profiles, and magazine catch notch heights compared to System7/NS2 specs. |
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: HFC M11 (PRE-ORDER)
Want to compare every option? Use the KWA M11 Adapter Builder.
