HIGH VOLUME TM SAIGA-12K / SAIGA SBS M4 HPA Adapter - 2026 Edition

Name: Airtac HIGH VOLUME TM SAIGA-12K / SAIGA SBS M4 HPA Adapter - 2026 Edition
Brand: Airtac
SKU: UK-AT-TM SAIGA-12K/SAIGASBSM4HPAAdapter
Price: 119.95 GBP
Availability: InStock

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Article code TM SAIGA-12K / SAIGA SBS M4 HPA Adapter

£119.95

in stock

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Product description

AIRTAC Adapters

Each of our adapters is designed to be low profile while reaching field limit FPS. We design and manufacture all of our products to the highest standard, and do not charge extra for ‘premium’ features. Where applicable this adapter features:

Lifetime Warranty (Our adapters have to be built to last)
Injection moulded or CNC magwell that is impervious to BB strikes at point blank skirmish FPS.
CNC or Injection moulded Feed Tubes and Magazine Catches for lifelong durability.
Tuneability/compatability via integrated shim systems. Our adapters are designed to cope with 'airsoft tolerances'
Gas Routers injection moulded from NBR, 1:1 with the factory gas router.

We test every HPA adapter we sell

Seal Test
Firing test, for feed and recoil (we have over 100 guns on site for testing)

Plug and Play

This adapter is ready to go out of the box. Valve, feed lips, and gas router are already fitted to the adapter. You do not need to use any donor parts.
No assembly is required.

Compact MP5

M4 Adapter Information

Injection moulded from polycarbonate, this magwell is near indestructible!
Compatible with most airsoft M4 magazines.
- This adapter prefers very fast feeding magazines. We recommend EPM 150 Round magazines as they have excellent fitment and strong springs.
- Magazines advertised as Fast Feed such as the Amarok 160RD fast feed magazines will also work well
BB retention means only 2-3 BBs are dropped when changing mag
A swappable rear shim is included

Key Information

We use a US Foster Fitting as standard. This is the most common airsoft HPA fitting. EU fittings can be purchased separately.
Some of our HPA adapters have a smaller internal volume than gas magazines. Because of this, you will need to use a PSI of 90–150.
If you need higher FPS, you can:
- Fit a tighter barrel
- Use a longer barrel
- Use heavier BBs
- Fit an improved hop bucking
If your replica has an NPAS fitted, we advise opening it fully.
Do not exceed 150 PSI. Many airsoft guns will not see an increase in FPS past this, as the hammer may struggle to depress the valve correctly.
Insert the HPA adapter with your bolt / slide locked back to minimise pressure against the nozzle loading arm.