Most of them say PMAG right on them, but some left the name off. They're only ripping off Magpul 99% with their product. And someone decided to make a different style. I don't know if they copied an actual magazine design or not. It may look like an AMMEND2 or some other non-PMAG magazine, but I didn't recognize it off hand or try to figure it out. If it's not G.I. or Magpul, I don't know what it is, and I never owned a Magpul magazine.