CTM HPA adapter for AAP-01 and G-Series pistols using M4 magazines
Do you love HPA setups and pistols like AAP-01 or G-Series? Are you a pistol player who’s not afraid to spray and pistol magazines simply aren’t enough? Want to feed your pistol using AEG magazines made for M4 (AR15)? Or are you building the ultimate speedsoft build? The HPA AAP-01 / G-Series adapter by CTM allows you to use M4 AEG magazines (e.g., PTS EPM) with G-Series type pistols such as SSP18, WE R17, Marui Model 17 and of course AAP-01. It is the perfect solution for anyone upgrading their pistol to HPA and wanting higher ammo capacity and to eliminate cooldown found in standard gas magazines. Thanks to precise nylon injection with fiberglass reinforcement and a steel magazine body, the adapter is durable, strong and lightweight. The adapter is designed for HPA systems running 80–120 PSI. Pressures above 140 PSI may damage the pistol or the adapter. You may also want to read our article on how to build an HPA setup.

Installation guide for mounting the adapter onto a GBB magazine (magazine not included)

Key Features

Compatibility with AAP-01 / G-Series GBB pistols (e.g., SSP18, 28)Allows connecting M4 AEG magazines to the pistol.
Injection-moulded bodyPrecise shaping for perfect reliability.
US Foster connectorIncluded with the adapter, ready for connection to standard HPA lines.
Recommended pressure 80–120 PSIEnsures safe and reliable operation without damaging the system.

Example of a complete HPA setup (parts sold separately)

Technical Specifications

Compatibility: AAP-01 / G-Series GBB pistols
Magazine type: AEG M4
Recommended pressure: 80–120 PSI
Material – adapter: Nylon with fiberglass reinforcement
Material – magazine catch: 6061 aluminium
Material – magazine body: Steel 1215MS
Weight: 107 g
Connector: QD US Foster (male)

Package Contents

HPA adapter AAP-01 / G-Series for M4 magazines
2.5 mm × 100 mm Allen screw with seal
Feed adapter insert for installation into a GBB m..

CTM HPA AAP-01 / G-Series Adapter for AEG M4 Mag – Black / Electroplated Chameleon