Hammerli AR20 FT Air Cylinder

Hammerli AR20 air tank Fits 10m AR20 and AR20 FT Models Steel air reservoir Max Fill Pressure: 300 BAR / 4,351 PSI Integral manometer (air pressure gauge)

If you plan to use this rifle for competitions, it'll be less stressful if you take along an extra filled air tank instead of adapters, hoses and fill devices.