HPA Adapter EU to M4

Name: HPA Adapter EU to M4
Brand: AirTac
SKU: AT-EU-M4
Availability: InStock

SKU : AT-EU-M4

Now available from : £40.00

7 in stock

Description Delivery Returns

Injection-moulded adapter enabling EU-series pistols to use M4 AEG magazines with HPA systems.

Product Features:
High-strength injection-moulded polymer body
Standard US-thread HPA fitting pre-installed
Integrated BB-retention system prevents feed loss
Removable magwell insert and shim set for tuning fit
Accepts standard M4 AEG magazines via direct HPA feed
Delivers consistent FPS without gas cooldown
Performs reliably in cold weather conditions
The AirTac HPA Adapter EU to M4 converts EU-series gas blowback pistols to operate with standard M4 AEG magazines powered by high-pressure air. Precision-moulded from a strong polymer blend, the adapter offers a solid, lightweight construction that stands up to intense gameplay. The pre-installed US-thread fitting connects directly to your HPA line for easy setup, while the integrated BB-retention system maintains feed stability and prevents round loss during reloads.

Switching to HPA offers a significant boost in consistency and control. Each shot delivers stable FPS output without the temperature-related cooldown seen in traditional gas magazines, improving both accuracy and reliability in long engagements. Using standard M4 magazines increases ammunition capacity while keeping performance smooth even in cold conditions. Complete with magwell insert, shim set, and screw hardware, this adapter is a dependable upgrade for players demanding high-efficiency and all-weather readiness from their secondary platform.

Range Overview:
AirTac’s HPA Adapters range converts traditional gas-powered replicas to use high-pressure air magazine systems with seamless reliability. Designed for multiple replica platforms, each adapter features precision-moulded construction, a secure BB-retention system, and standardised US-thread fittings for broad compatibility. The range combines rugged strength with practical installation, giving players smoother reloads and extended playtime through improved air efficiency and modular flexibility.

Injection-moulded polymer housings provide durability and consistent alignment
Standard US-thread fittings ensure cross-system HPA compatibility
Integrated BB-retention systems prevent feed loss during reloads
Supplied with magwell inserts, screws and shim sets for precise fitment
Available for multiple pistol and SMG platforms for modular loadouts
Engineered for reliability, consistency and long-term performance
Brand Statement:
AirTac specialise in developing high-performance HPA conversion systems for airsoft enthusiasts seeking consistent, efficient, and adaptable performance. Their focus on precision engineering and robust construction ensures every product delivers dependable field use, intuitive function, and lasting value.

We aim to SHIP your purchase within 2 business days, usually less. If this is not possible, we will contact you as soon as we can. We cannot be held responsible for delays due to the Courier Service or Post Office Royal Mail. Please allow up to 4 days for delivery, depending on your chosen shipping option.

UK Delivery: For details of our shipping charges please view our Shipping Policy.

Please Note: We currently only ship within the UK, we do not ship outside the UK or overseas.

As the delivery is provided via a courier service it is important that you ensure there will be someone available at the delivery location to sign for the parcel. No refund of the delivery cost will be made for failed deliveries where there has been no-one available to accept the parcel.

If you wish to return any items, please contact us either via email (info@urbanairsoftuk.com) or on the phone (01924 899 109)

Returns address:
Fear Masters Entertainment Ltd
t/a Urban Airsoft Store
Exchange Buildings
Exchange Street
Normanton
West Yorkshire
WF6 2AA

* Please note this is our Head Office and Shop.

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