Infinite

pushes the limits.

A new way to play, even more intense.

Made in Europe, the Infinite kit is available exclusively on ZZZ Airsoft, in limited quantities.

Buy
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"The best way to play HPA"

James N.

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“Perfect with my AAP01”

Dorian S.

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"An innovative system"

Mickael P.

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"The best of HPA"

Paul M.

New

More complete, more fun.

Infinite V4

The most complete HPA conversion kit for Airsoft pistol GBB is back with several improvements.

Drop in Tokyo Marui

The Infinite V4 kit is now 100% compatible with the Tokyo Marui G17 Gen 4 and Gen 5.

Ultra-simple “drop-in” installation: it mounts directly into your airsoft replica with no modifications needed.

For older-generation Tokyo Marui Glocks (excluding the TM G17 Gen4 and Gen5), a small modification is needed to route the HPA hose through the lower frame. The procedure is quick, easy, and safe for your replica. An optional cutting template is available to make the job even simpler.

Universal compatibility

Equipped with an improved mounting system, the Infinite V4 kit delivers universal compatibility with models like the AAP-01, G17, G45, G19X, P80 and other similar Airsoft replicas. Its flexible fit, using shims lets you fine-tune the kit’s height for a precise, perfect fit on every pistol.

For AAP-01 and Airsoft Glock replicas (except G17 TM Gen4 and Gen5), a small modification is needed to route the HPA hose through the lower frame. The procedure is quick, easy, and safe for your replica. An optional cutting template is available to make the job even simpler.

Optimized responsiveness

A new output valve, positioned as close to the firing pin as possible, enables faster opening and improved airflow on every shot, delivering 0.7–1.71 J depending on BB weight and operating pressure (PSI).

Even more resistant

The kit's clamping system has been improved: it now uses steel nuts, providing better resistance.

An innovative HPA kit.

For players who want it all, without compromise.

Discover Infinite, the first HPA kit specifically designed for the GBB platform, the most compact and realistic in airsoft. Thanks to its innovative “Split” design,it preserves all the feel and features of a GBB while delivering the benefits of HPA.

Fully mechanical, with no FCU or LiPo battery, Infinite delivers consistent power and flawless reliability with every shot. It transforms your GBB into a compact, high-performance HPA replica designed for immersive gameplay, giving you a no-compromise experience.

Take a Closer Look.

HPA performance

Up to 30 BBs per second, with adjustable power from 0.7 J to 1.71 J depending on BB weight and operating pressure (PSI).

Zero interruption

Designed for action, its “Split” setup keeps air and BBs separate, letting you change magazines instantly, no need to disconnect the air line.

Kit de conversion HPA Infinite V4 produit 001

Minimalist design

Once installed, the kit keeps everything clean, streamlined, and minimalist.

Empty magazine detection

Enjoy a functional slide stop!
When your magazine is empty, the slide locks back mechanically.

Milsim Split Magazine

Magazines
designed for action.

Discover the Split magazines from the Milsim range: the perfect balance of performance and practicality. Lightweight and durable, their unique design makes every reload quick and easy while maintaining the feel and handling of your GBB.

Up to

3x

more compact than a
GBB magazine

Up to

5x

lighter than a
GBB magazine

Only

18 g

magazine¹

Designed for gameplay, the magazines have been completely re-engineered, stripping away the unnecessary to keep only what matters: reliability, lightness, and efficiency.

Empty mag detection
Enjoy a fully functional slide stop! When your magazine is empty, the slide locks back mechanically.

Faster
Built for gameplay, its “Split” design separates air from the BBs, letting you change magazines in an instant, without ever disconnecting the HPA line.

Simple, effective, hassle-free
The magazines run without gas, making them far more reliable. No more pressure loss: just load your BBs and play.

Even more possibilities.

Why stick to just one playstyle when you can switch modes effortlessly?

All In one

M4 / MP5 adapters

More BBs

Get a major advantage: you can also use your AEG magazines thanks to Split adapters.
In an instant, swap in an M4 or MP5 Split adapter to greatly increase your BB capacity and gain the upper hand in your airsoft matches.

Modified AEP Magazines (Limited Edition)

Aep custom

And that’s not all. The Infinite kit is now compatible with modified AEP magazines. To ensure perfect fit with GBB replicas, each original magazine has been carefully machined to create a precise notch. Without this modification, this adaptation simply wouldn’t be possible.

Compatibility

Designed to fit.

Quick installation, precise adjustments, and universal compatibility: with Infinite, spend less time setting up your gear and more time playing.

Compatibility

Universal compatibility.

Want to switch? You can do it in minutes.
Built to Glock Tokyo Marui magazine standards, the Infinite kit fits a wide range of models AAP-01, G17, G45, G19X, P80…and many more, so you get total versatility on the field.

Installation

Simple and effective.

Unlike traditional HPA systems, the Infinite kit doesn't need to be installed in a gearbox.
Access is immediate, no replica opening or complex teardown required.
Thanks to its quick-lock system, it installs in seconds while providing a secure, long-lasting mount.

Precise adjustments

Perfectly fitted.

Forget complicated trigger board, nozzle, or FCU alignments...
The Infinite kit is all about simplicity: use the included shims to adjust the kit’s height in seconds for a perfect fit on your replica, that’s it.

Why choose Infinite?

Highlights.

Efficient

Say goodbye to gas and CO₂ constraints.
With HPA, enjoy controllable, consistent, and reliable power, whatever the weather.

A 100% mechanical, simple and robust system: no FCU programming, no battery.

Result: longer runtime, consistent shots, instant responsiveness... and total immersion with every shot.

Immersive

With the Infinite conversion kit, don’t just shoot BBs.
Experience airsoft at its fullest!

Built for gameplay, its “Split” design separates air from the BBs, letting you swap magazines in a flash without ever disconnecting the air line.

It transforms your GBB for greater reliability and efficiency while keeping the authentic GBB feel: movable slide, strong blowback, and empty-mag detection for maximum immersion with every shot.

Low profile

Switch to HPA with your favorite GBB, without compromising style or handling.

The Infinite kit is meticulously designed to preserve your replica’s ergonomics and aesthetics.
Once installed, everything stays cohesive, clean, and minimalist.

Versatile

Switch playstyles in an instant with the Infinite kit.

For full immersion, use Milsim magazines and enjoy the authentic GBB experience: blowback, empty-mag detection, perfect handling…

Need more BBs? Instantly switch to an M4 or MP5 Split adapter, use your AEG magazines, and greatly extend your ammo capacity.

Modular

AAP-01, G17, G45, G19X, P80 and similar models: the Infinite kit won’t leave anyone behind.

Built to Glock Tokyo Marui magazine standards, it delivers universal compatibility and a perfect fit on every replica. Its flexible shim-based adjustment system lets you precisely set the kit’s height for a custom fit across all your pistols, with no compromise on reliability or performance.

For AAP-01 and Airsoft Glock replicas (except G17 TM Gen4 and Gen5), a small modification is needed to route the HPA hose through the lower frame. The procedure is quick, easy, and safe for your replica. An optional cutting template is available to make the job even simpler.

Reviews.

Check out what players say, reviews and field tests from folks who’ve already tried the Infinite kit.

@Chairmancat

@Jaeger-Precision

@HBVK2

@The Dingo's Lair

Frequently asked questions

Why choose Infinite over a conventional electro-pneumatic HPA system?

Infinite is the first HPA kit designed for the GBB platform, the most compact and realistic in airsoft.
Unlike electro-pneumatic HPA systems, it requires neither FCU nor battery: everything is mechanical, simple and reliable.
You keep the recoil, the end-of-magazine firing stop and all the fun sensations of a GBB, with the regularity and power of the HPA.
And all this at a much more affordable price than traditional HPA systems, which often cost between €300 and €700.
Infinite is ideal if you are looking for an ultra-compact, high-performance primary or secondary replica capable of making your games more intense and immersive.

Classic HPA system:

❌ Long and complex installation
❌ Requires FCU and battery
❌ High price (€300 – €700)
No feeling when shooting

With Infinite:

✅ Easy installation
✅ 100% mechanical, no electronics
✅ Realistic sensations (recoil, stopping firing at the end of the magazine, etc.)
✅ More compact, more fun, more immersive
✅ More affordable price

Is the kit installation Drop-in?

Yes, the Infinite V4 is designed for perfect compatibility with G17 Tokyo Marui Gen 4 and 5.
This means the conversion kit can be installed straight in, with no modifications needed on your Airsoft replica.

However, for the AAP-01 and Airsoft Glock replicas (except G17 TM Gen4 and Gen5), a small modification is needed to route the HPA hose through the lower frame. The procedure is quick, easy, and safe for your Airsoft replica. An optional cutting template is available to make the job even simpler.

Is the Infinite Kit compatible with the AAP-01(C)?

Yes, the Infinite kit is fully compatible with your AAP-01. Thanks to its universal design, it fits a wide range of Airsoft replicas.

To easily install your Infinite kit, follow the complete guide available here: Installation Guide .

Is the HPA coupler included with the Infinite kit?

No, the coupler is not included directly, as there are several standards (US, EU, MINI).
Leaving the choice up to users allows the kit to be adapted to each configuration and avoids imposing an accessory that would not suit everyone.

If required, the coupler can be added from the “HPA Fittings” section of the site.
The kit is equipped with an output to a 6x4 mm line (standard in HPA), compatible with US, EU or MINI fittings.

Which magazines are compatible?

The INFINITE HPA kit offers three magazine options:

-Milsim Magazines: Designed for full immersion, with a discreet, lightweight design. Enjoy all the GBB feels: blowback, slide lock on empty, natural handling… Don’t just shoot BBs, experience airsoft in a more realistic, fun, and intense way.

-M4/MP5 Adapters: Perfect for players who prioritize capacity, using AEG magazines holding over 100 BBs. A great solution for those willing to sacrifice some realism and GBB handling in exchange for maximum ammo in-game.

-Modified AEP Magazines (Limited Edition): Ideal for players looking for a balance of discretion and versatility, with adjustable capacity from 30 to 100 BBs, though without the empty-mag slide lock feature.

⚠️ If you choose the AEP option, you will need this specific cap to use them with your Infinite kit (not compatible with V1 and V2): 👉 Infinite AEP Cap .

To ensure optimum compatibility with GBB replicas, a notch has been carefully machined onto the original CYMA AEP magazines (without this process, this simply would not have been possible). AEP TM and SSE18 Novritsch magazines are also compatible, but will require the same notch to be machined.

Where to buy

Made in Europe, the Infinite Kit is available as an exclusive launch offer on ZZZ Airsoft, in limited quantities from October 3 to 11, 2025. Subscribe to our newsletter to never miss a thing!

Buy now

Items will only be available on ZZZ-airsoft.com during the sale dates listed above. Dates and times are subject to change.

what's in the box

  • Infinite HPA Conversion Kit (Pre-Assembled)
  • Installation set