This HPA adapter represents the culmination of months of work to produce, from scratch, a shortened magazine for the Tokyo Marui GBB MP7. This leads to an ultra lightweight magazine setup, that is both more enjoyable and economical than buying the gas mags.

Field limits can be achieved with around 100-110PSI

Installation

A donor mag is required to build this adapter. You will need to remove the gas valve, feed lips, gas router and valve knocker from your gas magazine, and install them onto our adapter. 

We pressure test each adapter before shipping, to ensure that your valve will drop straight in and seal! We require donor parts to ensure absolute compatibility with your RIF.

Configurations

Modular Adapter Top

This is the 'top' part of the modular HPA adapter, and is available for purchase so you can use your existing modular bases, saving you money!

M4 

Compatible with most M4 magazines, works best with PTS EPM1.

MP5

Compatible with all CYMA MP5 Mid Cap Magazines

Shotgun Shell 

Compatible with CYMA Shotgun Shells and some other brands

Drum Base

Allows your HPA adapter to be used with a Tokyo Marui MP5 or VZ61 drum (or a Well/Jing Gong one if you can find them). The drum itself can be purchased separately here

Modular Mag-wells also Sold Seperately!

Modular Mag-wells can be purchased individually here. I recommend mixing one high capacity mag-well, e.g. M4 or MP5 with a limited capacity mag-well such as the shotgun shell base, for those sites who don't like HPA adapters, or for when you want a more 'realistic' setup, while still running HPA.