AirsoftNEXT got these HPA powered airsoft guns to a game to find out how they perform. The CYMA EMG CGS Series Noveske N4 Gen 3 Gas Blowback Airsoft Rifle, but uses the T8 HPA Adapter. Whilst the M4 HPA rifle is with Raven's innovative HPA engine, this rifle offers a seamless blend of electromagnetic actuation and HPA technology, resulting in superior performance, tunability, and air efficiency.