There are several guys in the different Dillon Groups on FB. This is one example:
https://www.facebook.com/groups/928962933789215/files/
The top PDF from Karl Bibb is his catalog.
(I tried attaching the PDF catalog but the upload kept failing)
That one has a primer catcher with and without tube. Not the rock chucker though.
I know they are all selling things that are out there for download, so someone with a printer should be able to get the original files.
ETA: I uploaded the PDF to my site. You can see it here: https://suburbangunowner.com/images/3d-items.pdf