The TAPP M4 Adapter lets your Maruyama MP9 (MP IX) run standard AEG M4/M16 magazines: cheap, light and everywhere.
Spec card
| Type | M4 |
|---|---|
| Feeds from | Standard AEG M4/M16 mags |
| BB capacity | 30-250+ |
| Overall profile | Medium |
| Recommended mags | PTS EPM1 or similar high-power mid-cap |
| Best for | Competitive play |
Compatibility
| Brand / Platform | Compatibility Verification | Tuning & Adjustment Notes |
|---|---|---|
| Maruyama MP9 / MP IX / MPIX | Direct Native Fit | Purpose-built for the Maruyama MP9 (MP IX) magazine well and feed geometry. Seat the adapter fully and confirm a positive seal against the loading nozzle for maximum gas efficiency and consistent feeding, without introducing drag on the reciprocating assembly. |
| Maruyama SCW-9 / SPC-9 (straight-mag versions) | NOT Compatible | These take the same straight Maruyama magazine as the MP9, but their magazine well is different, so the adapters aren't interchangeable. Use our Maruyama SCW-9 adapter. |
| Maruyama SCW-9 / SPC-9 / FMG-9 (GSeries / Glock-style magazine well) | NOT Compatible | These use a Glock-pattern magazine well. Use our Maruyama SCW-9 (GSeries) adapter. |
| KWA / KSC MP9 & TP9, VORSK VMP-1 | NOT Compatible | Despite the shared name, the KWA/KSC MP9 is a different gun with a different magazine. Use our KWA MP9/VMP-1 adapter. |
The Maruyama MP9 (MP IX) shares Maruyama's straight GBB magazine with the SCW-9 and SPC-9, but its magazine well is different, so this adapter only fits the MP9. Check which gun you have before ordering.
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: Maruyama SCW-9, KWA MP9/VMP-1, VORSK VMP2, Umarex/KWA Beretta PMX
Want to compare every option? Use the Maruyama MP9 (MP IX) Adapter Builder.
