Those things have been around for years. As far as I know they were the original 209 primed ml's. He has passed away now, but I knew a guy who used one and said that it was the best ml he had ever used. Keep in mind, this was before all the other 209's came on the market. Buddy of mine bought one at a pawn shop this year, and he has shot it and said that he had no problems with it.