Quote Originally Posted by Orlov556 View Post
Serious thought... although this thread is pretty hilarious, is that it is the locking block, which is designed to be loose. There is nothing wrong with your gun.
You could be on to something. Mine does not move much as it is pretty gummed up with dirt and old oils. Reminds me of my old JFrame. It needed a spot of grease on some little part to keep that part from rattling. Perhaps the OP cleaned the gun too well.