Use the mags you know
Fits most M4 AEG magazines. Bring compatible magazines from your rifle setup to your PTX.

YOUR PTX. MORE POSSIBILITIES.
Bring your compatible M4 AEG magazines to your pistol setup. The straight GATE x AIRTAC adapter opens up another way to run your GATE PTX, using magazines you may already have.
Choose the capacity that suits your game. Fit the adapter, check feeding with your chosen magazine and make the setup your own.

MADE FOR YOUR LOADOUT
A straightforward upgrade for PTX owners who want to use M4 magazines without building an adapter from donor parts.
Fits most M4 AEG magazines. Bring compatible magazines from your rifle setup to your PTX.
The valve, feed lips and gas router are already fitted. The adapter arrives factory assembled.
The BB retention system limits spillage during magazine changes. AIRTAC specifies only 2–3 BBs dropped per change.
Magazine fit and feeding vary by model. Check the compatibility guidance below.
OPEN IT. FIT IT. DIAL IT IN.
You get a complete, factory-assembled straight adapter and a rear fitting shim to help dial in the fit.
There is no need to strip a second magazine for parts. The valve, feed lips and gas router are already in place.
Supplied in AIRTAC’s original packaging. Your PTX pistol and M4 magazine are sold separately.

FINE-TUNE YOUR FEEDING
Start with a suitable magazine, then check how it feeds in your setup. A small adjustment in GCS may be needed for some magazines.
AIRTAC recommends EPM1 and EPM1s, plus Fast Feed models. Compatibility covers most M4 AEG magazines, not every model.
Fit the adapter to your PTX. Use the included rear shim where needed, then check feeding with your chosen magazine.
If your magazine needs more time to feed, you may need to increase Main Valve Pause in GATE Control Station and test again.
The right setting depends on your magazine and setup. No single Main Valve Pause value is recommended for every magazine.
KNOW WHAT YOU ARE GETTING
| Brand | GATE x AIRTAC |
|---|---|
| Compatible pistol | GATE PTX HPA Pistol |
| Adapter version | Straight M4 |
| Magazine type | Most M4 AEG magazines |
| Recommended magazines | EPM1 / EPM1s and Fast Feed models |
| Possible GCS adjustment | Increase Main Valve Pause, depending on magazine |
| Product code | PTX-M4A |
PTX pistol and M4 magazine are not included.
This is the straight version. The adapter shown mounted on a pistol illustrates fit and scale.
The adapter fits most M4 AEG magazines. AIRTAC recommends EPM1/EPM1s and Fast Feed models. Check fit and feeding with your selected magazine; some setups may require a higher Main Valve Pause value in GCS.
No. The adapter is factory assembled, with the valve, feed lips and gas router already fitted. A rear fitting shim is included.
This product, PTX-M4A, is the straight M4 adapter. The photographs show the version supplied.
A factory-assembled M4 magazine adapter for GATE PTX, created in collaboration between GATE and AIRTAC.
GATE x AIRTAC COLLABORATION

Created in collaboration between GATE and AIRTAC.
PTX pistol, air line and M4 magazine sold separately.