Harness Karabinas

I have a Gin Speedflyer harness and need to get some new Karabinas.

On the Gin Website it showns 2 sizes are available 30mm and 40mm - which Karabinas are originally supplied with the Gin Speedflyer harness for Nano Risers ?

Is there a Standard size being used for Speedriding harness/riser connections ?

or

 

Update/Edit: Gin Speedflyer harness all use the 30mm Harness Karabinas

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