The TAPP Drum Adapter puts a 400-2,500+ round drum on your GHK M4/MK18/G5 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 |
|---|---|---|
| GHK M4/MK18/G5 | Direct Native Fit | Purpose-built for the GHK M4/MK18/G5 magazine well and feed geometry. Fine-tune the adjustable plunger height to establish a positive compression seal against the loading nozzle, maximising gas efficiency and feed consistency while preventing mechanical drag during the cycle. |
| GHK HK416 / Umarex HK416A5 (GHK-manufactured) | Direct Native Fit (Shared GHK M4/G5 Magazine) | GHK's HK416 platform (including the Umarex-licensed HK416A5 built by GHK) runs on the same GHK M4/G5 magazine family, so this adapter installs and seals the same way. |
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: M4 AEG, VFC M4, KJW M4, KWA/KSC M4, WE-Tech Open Bolt M4/M16/416/XM177/MK18/MSK/L85/SCAR-L, WA/WOC/GE/KA/Matrix/Inokatsu, SRC ZAROS SR4, G&G MGCR
Want to compare every option? Use the GHK M4/MK18/G5 Adapter Builder.
