HK Army Alpha Air w/ HP8 Regulator - 68ciThe HK Army Alpha Air 68ci System is engineered for players who demand speed, agility, and performance. These carbon fiber wrapped bottles are the lightest and smallest HK Army has ever produced, delivering a major reduction in weight and size compared to traditional tanks without sacrificing capacity. The Alpha Airs compact profile is smaller than comparable tanks, allowing you to carry more air while keeping your setup balanced and maneuverable.