My Remington 512...help please.

I just bought a remington 512 at an amazing deal because it fails to feed the bullets.I have a hunch that its missing a piece for the process to occur. Can anyone post a pic of a 512 minus the stock so I can compare to mine? I will post pics of mine when I finish touching up the stock. Im excited about this rifle. I really enjoy old 22 rifles and this has been on my wishlist for a while now. Any help is greatly appreciated.

No one has any comments?

Thats awesome! The first pic looks a little different than mine. I hope Im just looking at it wrong. Ill try to get some pics up tonight for comment.