EPeS TM MK2 GBB HPA Adaptor
The EPeS TM MK2 GBB HPA Adaptor is a magazine adaptor that converts Tokyo Marui GBB pistol magazines to HPA operation. Tokyo Marui GBB pistols are the benchmark platform for gas blowback realism in airsoft — the MK2 HPA adaptor replaces the gas fill port with an HPA line connection, allowing the magazine to be fed from a regulated HPA tank. This provides consistent output pressure across every shot regardless of ambient temperature or magazine gas level — removing the two biggest causes of velocity inconsistency in standard GBB operation.
EPeS is a specialist HPA and GBB adaptor manufacturer. MK2 is the current iteration of the EPeS TM adaptor range. For TM GBB pistol operators who want HPA consistency on their TM platform without replacing the entire pistol with a dedicated HPA handgun, this is the magazine-level conversion for TM GBB magazines.
- EPeS TM MK2 GBB HPA Adaptor
- Converts Tokyo Marui GBB magazines to HPA feed
- MK2 current iteration
- Eliminates gas charging — consistent pressure from regulated HPA tank
- Compatible with Tokyo Marui GBB pistol magazines
- Made by EPeS



