Where can i get this part?

[Mongooser]

Hi Hubbers

 

Yesterday someone rode into me and snapped the hanger bolt thing on my bike and now my mech keeps slipping forwards. it split in half. Does anyone know where i can get the part or have a broken mech with one on i could buy off you? its the black part on the left

 

Thanks

[ichnusa]

Which deraileur is it?

[Mongooser]

Which deraileur is it?

sram x9 short cage