The TAPP Green Gas Drum is a 400-round green gas drum (AW Custom) for your KWA MP7 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 MP7A1 GBB Series | Direct Native Fit | Direct OEM factory standard for KWA/KSC System7/NS2 MP7 platforms. Designed without a plunger assembly to align with fixed output valve positioning. Fine-tune the adjustable gasket height to establish an airtight compression seal against the loading nozzle assembly, ensuring smooth cycling and maximum gas efficiency without creating bolt drag. |
| Tokyo Marui / VFC / WE-Tech MP7 & KWA Rifle Lines | NOT Compatible | Third-party MP7 platforms and full-size KWA rifle series (LM4/MATEN) utilize distinct receiver dimensions, non-matching valve knocker strike depths, and proprietary gas router seal profiles incompatible with KWA System7 MP7 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 MP7, VFC MP7 (Navy), WE SMG8
Want to compare every option? Use the KWA MP7 Adapter Builder.
