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CM Airsoft

Airtac Vorsk VMP1/VMP2 to M4 HPA Adapter

Airtac Vorsk VMP1/VMP2 to M4 HPA Adapter

£116.98 GBP
£116.98 GBP
Sale Sold out
Taxes included.

Note: Product photos show a grey coloured adapter, production will be black.

AIRTAC Adapters

Each of our adapters is designed to be low profile while reaching field limit FPS. We design and manufacture all of our products to the highest standard, and do not charge extra for ‘premium’ features. Where applicable this adapter features:
  • Lifetime Warranty (Our adapters have to be built to last)
  • Injection moulded or CNC magwell that is impervious to BB strikes at point blank skirmish FPS.
  • CNC or Injection moulded Feed Tubes and Magazine Catches for lifelong durability.
  • Tuneability/compatability via integrated shim systems. Our adapters are designed to cope with 'airsoft tolerances'
  • Gas Routers injection moulded from NBR, 1:1 with the factory gas router.
Airtac test every HPA adapter we sell
  • Seal Test
  • Firing test, for feed and recoil (we have over 100 guns on site for testing)

Plug and Play

This adapter is ready to go out of the box. Valve, feed lips, and gas router are already fitted to the adapter. You do not need to use any donor parts.
No assembly is required.


M4 Adapter Information

  • Injection moulded from polycarbonate, this magwell is near indestructible!
  • Compatible with most airsoft M4 magazines.
    • We recommend EPM1/EPM1s magazines as they have excellent fitment and strong springs.
    • Magazines advertised as Fast Feed such as the original EPM or Amarok magazines will also work well
  • BB retention means only 2-3 BBs are dropped when changing mag
  • A swappable rear shim is included
  • Please note only 2 screws are required to attach the modular magwell, some adapters may have more


Key Information

  • We use a US Foster Fitting as standard. This is the most common airsoft HPA fitting. EU fittings can be purchased separately.
  • Some of our HPA adapters have a smaller internal volume than gas magazines. Because of this, you will need to use a PSI of 90–150.
  • If you need higher FPS, you can:
    • Fit a tighter barrel
    • Use a longer barrel
    • Use heavier BBs
    • Fit an improved hop bucking
  • If your replica has an NPAS fitted, we advise opening it fully.
  • Do not exceed 150 PSI. Many airsoft guns will not see an increase in FPS past this, as the hammer may struggle to depress the valve correctly.
  • Insert the HPA adapter with your bolt / slide locked back to minimise pressure against the nozzle loading arm.

This is the VMP1 to M4 adapter if you need a VMP2 adapter we also sell a smaller version for a better fit! 

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