Wolverine Airsoft HYDRA Gen 2 HPA Engine O-Ring Kit
The Wolverine Airsoft HYDRA Gen 2 O-Ring Kit is the complete O-ring replacement set for the Wolverine HYDRA Gen 2 HPA AEG engine. The HYDRA Gen 2 is Wolverine’s higher-flow HPA engine family — designed for AEG builds requiring more air volume per shot than the standard INFERNO provides. The engine contains O-rings at the piston, nozzle, and valve positions that form the sealed air path. As these O-rings age through operating cycles, they degrade — causing air leaks, velocity loss, and cycling inconsistency. This kit contains the correct O-ring sizes for all positions in the HYDRA Gen 2 to complete a full engine sealing service in one maintenance pass.
OEM Wolverine maintenance kit for HYDRA Gen 2 engine servicing. For HYDRA Gen 2 operators experiencing declining performance or air leaks, this is the correct O-ring replacement set for the Gen 2 generation of the HYDRA engine.
- Wolverine Airsoft HYDRA Gen 2 O-Ring Kit
- Complete O-ring set for all HYDRA Gen 2 sealing positions
- Restores air sealing after O-ring wear or degradation
- HYDRA Gen 2 specific — correct sizes for Gen 2 engine
- Made by Wolverine Airsoft — leading HPA airsoft specialist



