PTS Syndicate came up with a "legacy" style compact AR AEG that takes its inspiration from the CAR-15 N23 PDW that never came into reality, if stories are to be believed that there was real design. Recoil Web came up with a story on this over a year ago, and they are not sure if it is a real patent application design or somebody just photoshopped it. But Recoil's Dave Merril tried making one based on the patent application.