It is not made by Nikon (Cosina? Someone else will know for sure) and it is a whole lot less robust than the FM3A. It is basically for beginners who want to learn on a manual focus camera. It comes with the lens which is basically a manual focus version of one of the cheapie plastic zoom kit lenses for consumer cameras. Also, if it matters to you, there is no motor for it.
Originally Posted by mjames
On the plus side, it will do what you need, it will take great Nikon glass and if you want to upgrade someday, you will be able to take your lenses with you to a higher end body.