The Wolverine Airsoft HYDRA: Gen. 1 is the second part of our Evolution Series. With the same SMP (single moving part) design, it does the same as an Inferno: Gen. 1 but with off-set nozzles. The Hydra was the first out-of-the-box drop-in HPA engine for guns with off-set nozzles. Convert guns like the M14, P90, Tavor, and more into an HPA monster with the Hydra. It is compatible with our Premium FCU and Bluetooth FCU for Android. It is completely modular with Inferno: Gen. 1, meaning you can start with the Hydra in say an M14, then buy an Evolution kit to go to say an M4 or AK. HPA is on the rise and Wolverine Airsoft is truly propelling the market forward. If you are ready to make the jump, hop on board with us, because we are leading the way.