I have bought mags from Mike and his family over the years at a number of Tanner Shows. His son is very knowledgeable about unusual mags that are hard to find. The kids all help out and are home schooled so they can travel to different shows. In all the years I have dealt with them they have never had any firearms for sale at their booth. This is the dealer that uses the pop rivet in all of his 15 plus round mags. I would think if they are being investigated for anything it is for selling high cap mags, including drums, that have been modified to only accept 15 rounds. But I don’t have any first had knowledge about their status at the Tanner.