There might be like 3 people in the world who need this, but if you want to store your extra DAA Mini Mr. Bulletfeeder loading tubes on your storage wall, this should do the trick.

I have one version that sticks out straight and can print without supports and one version that has longer arms and is angled up that needs a bit of support to print.

You'll need to have an empty insert printed in order to attach this to your HSW:
https://files.printables.com/media/prints/152592/stls/1435358_2ce60d36-cc57-4ab7-ab63-12db1ccead09/insert-empty.stl