The CTM Hi-Capa/M4 HPA Bundle is a convenient way to convert your Hi-Capa gas blowback pistol to HPA, combining the essential components needed to run M4 AEG magazines with an external air supply.

At the centre of the setup is the CTM Hi-Capa/M4 HPA Adapter, allowing you to replace traditional gas magazine operation with readily available M4 AEG magazines. This gives you increased ammunition capacity, faster reloads and more consistent performance during extended gameplay.

Designed for CQB, speedsoft and performance-focused Hi-Capa builds, the adapter provides a practical solution for players looking to get more out of their pistol without constantly refilling gas magazines.

Paired with a suitable HPA tank, adjustable regulator and airline, the system allows you to fine-tune your operating pressure to suit your pistol setup. This helps reduce the temperature-related performance variations associated with conventional gas magazines.

Whether you're converting your first Hi-Capa or putting together a dedicated HPA pistol build, the CTM Hi-Capa/M4 HPA Bundle offers a straightforward route into HPA with the convenience of M4 magazine compatibility.

Key Features

HPA conversion bundle for Hi-Capa GBB pistols

CTM Hi-Capa/M4 HPA magazine adapter

Allows the use of compatible M4 AEG magazines

Increased ammunition capacity compared with standard gas magazines

Quick and convenient magazine changes

Designed for use with a regulated HPA air supply

Adjustable operating pressure through an external regulator

Helps maintain consistent performance during extended gameplay

Reduces reliance on conventional gas magazines

Suitable for compatible Hi-Capa 4.3 and 5.1 platforms

Ideal for CQB, speedsoft and competitive gameplay

Suitable for custom HPA Hi-Capa builds