The TAPP Drum Adapter puts a 400-2,500+ round drum on your Umarex/KWA Beretta PMX for suppressive fire.
Spec card
| Type | Drum |
|---|---|
| Feeds from | Drum magazine (pre-installed) |
| BB capacity | 400-2,500+ |
| Overall profile | Medium to Large |
| Recommended mags | Tokyo Marui or Angel Custom drum |
| Best for | Suppressive fire and general skirmishes |
Drum options
- 400rd Mini: 400-round mini drum
- 1500rd Flash: 1,500-round flash drum
- 1500rd Electric: 1,500-round electric drum
- 1500rd Electric Tan: 1,500-round electric drum in tan
- 2000rd Flash: 2,000-round flash drum
- 2000rd Electric: 2,000-round electric drum
- 1200rd Twin: 1,200-round twin drum
- Adapter Only – Angel Custom: adapter only, for an Angel Custom drum you already own
- Adapter Only – TM Mini: adapter only, for a Tokyo Marui mini drum you already own
- Adapter Only – TM Twin: adapter only, for a Tokyo Marui twin drum you already own
- Adapter Only – A&K: adapter only, for an A&K drum you already own
- Adapter Only – ICS: adapter only, for an ICS drum you already own
Compatibility
| Brand / Platform | Compatibility Verification | Tuning & Adjustment Notes |
|---|---|---|
| Umarex / KWA Beretta PMX GBB SMG Series | Direct Native Fit | Direct OEM factory standard for the KWA-manufactured Umarex Beretta PMX SMG platform (System7 / NS2 engine architecture). Fine-tune the adjustable gasket height to establish an airtight compression seal against the bolt nozzle assembly, ensuring maximum gas efficiency and rapid cycling without creating friction against the reciprocating bolt mechanism. |
| KWA MP9 / KWA MP7 / VFC & TM SMG Lines | NOT Compatible | KWA MP9/MP7 platforms and third-party SMG models (VFC, Tokyo Marui) utilize distinct magazine shell dimensions, non-matching valve striker heights, and proprietary gas router profiles incompatible with KWA PMX 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. US-spec Foster fitting included, never exceed 150 PSI, use a secondary low-pressure regulator.
- Warranty: 30-Day Warranty + Lifetime Support.
More options
Also available for: KWA MP9/VMP-1, VORSK VMP2, Maruyama SCW-9
Want to compare every option? Use the Umarex/KWA Beretta PMX Adapter Builder.
