Like everyone else, I think it probably is a fake.
I was just comparing it to mine and the crimp on mine looks way more defined than that...but I am also not sure how much the photo quality is degraded in that post. From my experience from using craigslist, sometimes crisp photos can end up weirdly warped when uploaded to the ads (I know from when I sell electronics on there).
You can ask the seller for a close up of the metal and see if they will email a picture of that to you.