Ok. I was on a Star Trek message board. They had a standard ad for the app Wish. Thing that drew my attention? A KO Devestator from G1. I doubt it's an official Devestator seeing as asking price was listed at $29. Then I keep scrolling. A Menesor KO for same. Keep scrolling. A 5 changer that looks bad arse. I download the app. Can't find them. Lol.
3P in this case is just an abbreviation for Third Party. I'm not quite sure why anyone would be selling a half-complete KO of Devastator.