EPeS M6/GE MK2 GBB HPA Adaptor
The EPeS M6/GE MK2 GBB HPA Adaptor is a magazine adaptor that converts M6 and GE MK2 GBB pistol magazines to HPA operation. GBB pistols normally rely on green gas or CO2 stored in the magazine to cycle the blowback mechanism and propel BBs — the HPA adaptor replaces the gas fill port with an HPA line connection, allowing the magazine to be fed from a regulated HPA tank instead of a gas charge. This provides consistent pressure across every shot regardless of ambient temperature, and eliminates the need to top up magazines with gas at regular intervals.
EPeS is a specialist HPA and GBB adaptor manufacturer. For M6 or GE MK2 GBB pistol operators who want the consistency and convenience of HPA operation on their pistol, this is the platform-specific adaptor for these two magazines.
- EPeS M6/GE MK2 GBB HPA Adaptor
- Converts M6 and GE MK2 GBB magazines to HPA feed
- Eliminates gas charging — consistent pressure from regulated HPA tank
- Compatible with M6 and GE MK2 GBB pistol magazines
- Made by EPeS



