Air Arms Fill Adapter, Fits Air Arms CZ Rifles w/Detachable Tanks Fill adapter Fits Air Arms CZ airguns with removable tanks* (S200 or T200) Connects to a female DIN thread If you've lost the fill adapter for your Air Arms CZ airgun, here's a replacement adapter. *If your CZ airgun has a removable tank and a gauge on the end, this is the only fill adapter that will fit. If your CZ airgun has a removable tank but NO gauge on the end, you can use this or AAP-S475. Note: This fill adapter will not fit other Air Arms rifles...only those made by CZ.