First posted in an earlier article, this particular Mini Rig is still a fairly new product. A tough one to find in the USA let alone the UK. Sometimes going under the description 'MagicRig'. There's a video along with some comments from a few people were able to grab these in that first article. For now, a few more Magic Rig mini shooters are available again shipping from the UK (click here)

MagicRig Mini Video Chest Mount Shooter Rig