The file 'BCAR Compatible Barrel Shroud For Kirin 3D Printer Model' is (stl) file type, size is 17.0KB.
I remade the shroud from scratch then made the shroud big enough to allow for a BCAR.
It can probably fit any BCAR but I've tested with the Worker BCAR without sleeve, ex BCAR, and ex BCAR rev2.