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HFC M11 HPA MP5 Adapter

HFC M11 HPA MP5 Adapter

Regular price $370.00 USD
Regular price Sale price $370.00 USD
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The TAPP MP5 Adapter lets your HFC M11 run regular AEG MP5 magazines.

Spec card

Type MP5
Feeds from AEG MP5 mags
BB capacity 65-110+
Overall profile Medium
Recommended mags CYMA, MAG or Matrix mid-cap
Best for Secondary

Compatibility

Brand / Platform Compatibility Verification Tuning & Adjustment Notes
HFC M11 / T77 GBB Series Direct Native Fit Direct OEM factory standard. Fine-tune the gasket height to establish an airtight compression seal against the loading nozzle assembly, ensuring optimal gas transfer and reliable feeding during high-rate-of-fire operation without bolt drag.
KSC / KWA Legacy M11A1 (Pre-NS2 / Hard Kick I & II) Verified Fit (Tuning Recommended) HFC utilizes the older pre-NS2 KSC/KWA internal gas system geometry. Fine-tune the gasket height to ensure the gas router seals flush against the older-style loading nozzle face without causing friction during rapid bolt cycling.
WELL G11 / M11A1 GBB Series Verified Fit (Minor Adjustment) Shares the same legacy pre-NS2 platform architecture. Due to minor manufacturing variances in receiver magazine catch heights, fine-tune gasket elevation to eliminate seal air gaps and prevent gas leakage.
KWA M11A1 NS2 / KSC System 7 M11 Series NOT Compatible Modern KWA NS2 and KSC System 7 models use updated internal gas architecture with completely different release valve locations, gas router profiles, and feed lip dimensions that will not seat or seal in HFC-pattern magwells.

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 M11

Want to compare every option? Use the HFC M11 Adapter Builder.