
ASG / KWA CZ P-09 to M4 HPA Adapter NEXT GEN
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These adapters are made to fit your existing GBB magazines, and include a Single Stack adapter, as well as a lanyard loop delete, allowing the adapter to sit flush with the base of the pistol.
Full support and lifetime warranty is offered for these products.
HOME INSTALLATION
Lanyard Delete
Punch out the grip panel pin with your finger over the lanyard loop. When the pin is out, carefully remove the lanyard loop (theres a spring), and place our lanyard delete into the hole. Re insert the pin. JOB DONE!
HPA ADAPTER
Installation is simple. Remove your gas base by knocking out the two large pins at the bottom of the mag (they can be knocked out from either side). Knock out the small pin in the BB channel of the magazine. Remove the spring and follower, and insert our single stack adapter into the magazine.
Place the O ring from the gas base plate of the CZ P-09 mag onto our adapter, and insert into magazine. Using the clamp to apply compression, line up the pin holes and fully re-insert one pin at a time. You’re then good to go!
Your adapter will come with a number of shims that can be used to ensure snug fitment of your M4 magazine.
DO NOT EXCEED 150PSI WITH ANY AIRSOFT HPA ADAPTER.
ALWAYS USE AIR REGULATED BY A SECONDARY REGULATOR (EG AT200, WOLVERINE STORM, POLARSTAR MRS).
CHECK YOUR PSI BEFORE CONNECTING AIR TO A HPA ADAPTER.
NEVER CONNECT OUR EQUIPMENT TO PAINTBALL AIR TANKS OR CO2 TANKS.
NEVER CONNECT OUR EQUIPMENT TO A TIPPMAN STYLE HPA LINE
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.
- Seal Test
- Firing test, for feed and recoil (we have over 100 guns on site for testing)
Compact MP5
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
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.
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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.

