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AirTac HPA Adapter Hi-Capa to M4
Key Features
- Converts Hi-Capa pistols to run HPA using M4 AEG magazines
- Durable injection-moulded polymer construction
- Pre-installed US-thread HPA fitting for quick setup
- Integrated BB retention system for reliable feeding
- Removable magwell and shim set for precise fitment
- Increased ammo capacity using standard M4 AEG magazines
Turn your Hi-Capa into a high-capacity HPA sidearm.
Description.
The AirTac HPA Adapter for Hi-Capa to M4 magazines transforms a standard Hi-Capa gas pistol into a high-capacity HPA-powered platform. Instead of relying on traditional green gas magazines, this adapter allows your pistol to feed from standard M4 AEG magazines while running from a high-pressure air system. For players who enjoy aggressive pistol gameplay or competitive speedsoft-style setups, the extra capacity alone can make a huge difference during fast-paced skirmishes.
The body is built from durable injection-moulded polymer, keeping the adapter lightweight but strong enough for regular field use. A pre-installed US-thread HPA fitting connects directly to most common HPA lines, meaning setup is straightforward. Inside the adapter, an integrated BB retention system helps prevent lost rounds during magazine changes while maintaining consistent feeding during rapid fire.
One of the key benefits of switching a Hi-Capa to HPA is consistency. Gas pistols can suffer from cooldown, especially during rapid shooting or colder weather. HPA removes that issue almost entirely, helping maintain stable FPS and reliable accuracy from the first shot to the last. The included magwell inserts and shim set allow users to fine-tune the fit to their pistol, ensuring smooth magazine alignment and dependable operation.
Other Great Features are,
Reliable feeding during rapid fire
Improved consistency compared to gas magazines
Works well in colder weather where gas struggles
Compatible with widely available M4 AEG magazines
In the box:
- AirTac Hi-Capa to M4 HPA Adapter
- Removable magwell insert
- Shim set and mounting hardware
Specifications
Brand: AirTac
Platform: Hi-Capa
Magazine Type: M4 AEG magazines
Connector: US-Thread HPA fitting
Construction: Injection-moulded polymer
EAN: 5056444737847
If you happen to see the AirTac Hi-Capa to M4 HPA Adapter at a lower price elsewhere, send us the link and we’ll try to beat it through our price match service.
Sku :
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Product Reviews
Delivery Prices start from just £2.50 with free delivery on orders over £75 To the uk mainland *.
Tip - The easiest way to check the shipping cost for what you want to buy is put all of the stuff you want in to your basket. Then in your basket under the sub total there is a link for “Estimate Shipping & Tax” click this and fill in the details and it will tell you the shipping cost and if you qualify for free shipping
Free Shipping
Free shipping on orders over £75 To UK Mainland (excluding some parts of scotland)
Free shipping on orders over £100 To Northern Ireland & the Republic of ireland, Scottish highlands & islands, and I.O.M
Sorry we do not offer free shipping to the Channel Islands
Free shipping is a 5 working day service* (if you order Monday you get it the next Monday)
Delivery price (Mainland UK)
Royal Mail (depending on weight) (2 Days Delivery*) From £2.50
Economy (post as much as you want) (2 to 4 Days Delivery*) £4.95 Flat Rate
Express shipping (post as much as you want) (1 to 2 Days Delivery*) £5.95 Flat Rate
*Working days (Saturday and Sunday are classed as non working days)
we can arrange a Saturday delivery on request but costs £20 and you will need to call us to pay the balance after making an order.
Delivery price (Ireland, Scottish Highlands & Islands)
Northern Ireland From £ 5.95
Highlands and islands From £5.95
I.O.M From £5.95
Republic of Ireland £6.95 (Flat Rate how ever big or small your order is)
Channel Islands £ 7.95 (Flat Rate how ever big or small your order is)
Delivery price (International Tracked)
(Flat Rate how ever big or small your order is)
Republic of Ireland (IRL)---- £6.95 Price Drop WAS £16
Belgium (BE)--------------- £7.95 Price Drop WAS £15
Netherlands (NL)---------- £6.95 Price Drop WAS £15
Germany (DE)-------------- £6.95 Price Drop WAS £25
Luxembourg (LUX)--------- £9.95 - NEW
France (FR)----------------- £9.95 Price Drop WAS £25
Austria (AT)---------------- £11.95 - NEW
Greece (GR)---------------- £12.95 - NEW
Sweden (SE)-------------- £14.95 - NEW
Denmark (DK)------------ £9.95 Price Drop WAS £15
Finland (FI)--------------- £15.95 - NEW
Italy (IT)------------------ £11.95 Price Drop WAS £16
Portugal (PT)------------- £11.95 Price Drop WAS £18
Poland (PL)----------------- £9.95 - NEW
Spain (ES)----------------- £12.95 Price Drop WAS £23
Sweden (SE)-------------- £11.95 Price Drop WAS £15
Slovakia (SK)------------- £11.95 - NEW
Slovenia (SL) ------------ £11.95 - NEW
Croatia (HR)-------------- £16.95 - NEW
Czech Republic (CZ)----- £10.95 - NEW
Hungary (HU)------------ £10.95 - NEW
Bulgaria (BG)------------ £14.95 - NEW
Romania (RO)------------ £13.95 - NEW
Switzerland (CH)--------- £12.95 - NEW
Turkey (TR)--------------- £17.95 NEW
Channel Islands ----------£ 7.95 Price Drop WAS £15
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