N/A First PCP Filling

First PCP walter ap20 pro. I was told the RovAir 4500 compressor would have the correct adapter to fill the tank. I have the air gun but the compressor hasn't arrived yet.

I was expecting the air gun would come with a male quick disconnect. But it came with something else.

Am I going to need to order another part to use the rovair to fill this? If so, what is it?

Thank you.

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Yes, that Air Venturi part you link should do it. The Walther part is to connect directly to the DIN fitting on a air tank. Or a "DIN300" if it is for 300 bar working pressure.

Seems like a lot of the European competition guns are filled this way. Maybe it is tradition, but they haven't gone to quick disconnect fittings or more 'standard' fill probes many other airguns use today.