Description
AirTac - High Pressure Air Adapter EU to M4 AEG Magazines
So, ever wished your airsoft pistol had rifle-level capacity without constantly swapping mags? That’s exactly what the AirTac EU to M4 HPA Adapter is built for. This clever bit of kit transforms your EU-series gas blowback pistol into a high-capacity HPA-powered setup, letting you run standard M4 AEG magazines for serious ammo capacity and consistent performance.
Built from durable injection-moulded polymer, it keeps things lightweight while still being tough enough for regular skirmish use. The pre-installed US-thread HPA fitting makes setup straightforward—just connect your airline and you’re good to go. Inside, the integrated BB retention system helps prevent lost rounds during reloads while ensuring smooth, reliable feeding, even when you’re firing rapidly in CQB or speedsoft scenarios.
One of the biggest advantages here is consistency. Gas pistols can struggle with cooldown, especially in colder conditions or during rapid fire. Switching to HPA eliminates that issue, giving you stable FPS and reliable performance from start to finish. The included magwell insert and shim set also allow for fine-tuning, helping you achieve a precise fit and optimal feeding with your chosen M4 magazines.
If you’re building a high-performance airsoft pistol setup or stepping into speedsoft, this adapter turns your sidearm into something far more capable—more rounds, more consistency, and far less downtime.
It’s not just an upgrade—it completely changes how your pistol performs on the field.
Highlights
- Converts EU-series pistols to run HPA with M4 AEG magazines
- Massive increase in ammo capacity using standard M4 mags
- Durable injection-moulded polymer construction
- Pre-installed US-thread HPA fitting for easy connection
- Integrated BB retention system for reliable feeding
- Includes magwell insert and shim set for precise fitment
- Improves consistency over traditional gas magazines
- Ideal for speedsoft and high-performance airsoft builds
What's Included
- 1 x AirTac EU to M4 HPA Adapter
- Removable magwell insert
- Shim set and mounting hardware
- Pre-installed HPA fitting
Technical Specifications
- Brand: AirTac
- EAN: 5056444737830
- Platform Compatibility: EU-Series Airsoft Pistols
- Magazine Compatibility: M4 AEG Magazines
- Connector: US-Thread HPA Fitting
- Construction: Injection-Moulded Polymer
- Application: HPA Airsoft Conversion Adapter
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Delivery Information
Affordable Shipping – Starting from Just £2.50
Our delivery prices begin at only £2.50 for UK mainland orders, with free standard delivery available on all orders over £100*. To quickly find out the exact shipping cost for your items, simply add everything to your basket. In the basket, you'll see a link under the subtotal titled "Estimate Shipping & Tax"—click this, enter your delivery details, and you’ll get a full quote including whether you qualify for free shipping.
Free Shipping Offers
- UK Mainland: Free on orders over £100*
- Northern Ireland, Republic of Ireland, Scottish Highlands & Islands, and Isle of Man: Free on orders over £100*
- Channel Islands: Unfortunately, we do not offer free shipping to this region
*Free shipping is a 5 working day service. For example, an order placed on Monday would typically arrive the following Monday.
Mainland UK Delivery Options
- Royal Mail: From £2.50 (2 working days, price based on weight)
- Economy Delivery: £4.95 flat rate (2–4 working days)
- Express Delivery: £6.95 flat rate (1–2 working days)
Working days exclude Saturdays, Sundays, and public holidays. Need your order on a Saturday? We can arrange this for £20—please contact us directly after placing your order to pay the balance.
Delivery Prices – Outside Mainland UK
- Northern Ireland: From £5.95
- Scottish Highlands & Islands: From £5.95
- Isle of Man: From £5.95
- Republic of Ireland: £6.95 flat rate (any size order)
- Channel Islands: £7.95 flat rate (any size order)
We strive to keep our delivery charges as fair and straightforward as possible, with clear options to suit all needs and budgets.
