Hatsan Gladius Aluminum Replacement Cylinder Extra, detachable air cylinder Fits Hatsan Gladius Air Rifles Integrated manometer (air pressure gauge) Maximum fill pressure 200 bar 255cc Rugged aluminum construction Having an extra air cylinder for your Hatsan Gladius air rifle is a great convenience. Theres no need for you to carry around a bulky hand pump or carbon fiber tank when all you need is this lightweight cylinder. This replacement cylinder simply screws into your gun when the other cylinder runs out of air. More time in the field and less time fiddling with recharging. Simply pull this detachable air cylinder from your gear bag and youre ready for more shooting action.