The TAPP Drum Adapter puts a 400-2,500+ round drum on your KWA/KSC ATP & KelTec SUB2000 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 |
|---|---|---|
| KWA / KSC ATP & ATP LE GBB Pistol Series | Direct Native Fit | Direct OEM factory standard for KWA / KSC ATP (Adaptive Training Pistol) and ATP LE models utilizing the System7 / NS2 engine. Fine-tune the adjustable gasket height to establish an airtight compression seal against the loading nozzle seal, ensuring maximum gas efficiency and smooth recoil recovery without creating drag on the returning slide assembly. |
| KelTec SUB2000 GBB Carbine | Direct Native Fit | Direct fit for the KelTec SUB2000 GBB carbine. Fine-tune the adjustable gasket height to establish an airtight compression seal against the loading nozzle seal, ensuring maximum gas efficiency and smooth bolt/slide recoil recovery without creating drag on the returning assembly. |
| KWA / KSC ATPZ GBB Pistol | NOT Compatible | The ATP and ATPZ are not cross compatible. This adapter/drum will not work in the ATPZ. If you have an ATPZ, please see the KWA/KSC ATPZ HPA Adapter/Drum. |
| Tokyo Marui / WE-Tech / VFC G-Series & Non-System7 Pistol Lines | NOT Compatible | Third-party Glock-pattern platforms (Tokyo Marui, WE-Tech, VFC) and non-System7 KWA pistol series utilize distinct internal magwell channel dimensions, non-matching valve striker placement, and proprietary gas router seal profiles incompatible with KWA ATP NS2 architecture. |
Own a KWA / KSC ATPZ? It is not cross compatible with the ATP. Get the correct one here: KWA/KSC ATPZ HPA Adapter/Drum.
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: G-Series/GLK, GHK GSeries/GLK, VFC GSeries/GLK, Elite Force GLK 42, Maruyama SCW-9 (GSeries)
Want to compare every option? Use the KWA/KSC ATP & KelTec SUB2000 Adapter Builder.
