The TAPP Green Gas Drum is a 400-round green gas drum (AW Custom) for your Hi-Capa 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 |
|---|---|---|
| Tokyo Marui / WE-Tech / Armorer Works / Novritsch / KJW / Army Armament Hi-Capa (2011) Series | Direct Native Fit | Direct OEM factory standard for the Tokyo Marui Hi-Capa 5.1/4.3 architecture and the vast ecosystem of TM-spec double-stack clones, including WE-Tech, Armorer Works (AW Custom HX series), Novritsch (SSP1 / SSP5), KJW (KP-05/06), Army Armament (Pit Viper / Sand Viper / R-series), and VORSK Hi-Capas. Fine-tune the adjustable gasket height to establish an airtight compression seal against the loading nozzle seal, ensuring maximum gas efficiency and rapid, snappy recoil recovery without creating drag on the returning slide assembly. |
| Single-Stack 1911s / KWA M2011 / KWC Hi-Capa & Third-Party Non-TM Lines | NOT Compatible | Standard single-stack 1911 platforms feature narrow magwells unable to accept wide double-stack Hi-Capa magazines. Additionally, KWA/KSC System7 2011/STI models and KWC-manufactured CO2 Hi-Capas utilize entirely different proprietary internal dimensions, non-matching valve striker heights, and distinct gas router seal profiles incompatible with TM-spec Hi-Capa 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
Want to compare every option? Use the Hi-Capa Adapter Builder.
