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WE Bulldog/PX4 HPA MP5 Adapter

WE Bulldog/PX4 HPA MP5 Adapter

Regular price $315.00 USD
Regular price Sale price $315.00 USD
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The TAPP MP5 Adapter lets your WE Bulldog/PX4 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
WE-Tech Bulldog / PX4 Compact GBB Pistol Series Direct Native Fit Direct OEM factory standard for the WE-Tech Bulldog (PX4 Compact) gas blowback series. 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.
Tokyo Marui PX4 / HK3P Full-Size PX4 & Third-Party Pistol Lines NOT Compatible Tokyo Marui PX4 models and full-size WE PX4 variants utilize longer magazine bodies, different magazine retention catch placements, and distinct gas router height specifications incompatible with the compact WE Bulldog magwell 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

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