Thanks for the heads-up, zip22. I tried the front door at Remington and got nothing. Click this link
http://www.remington.com/search.aspx?q=model%20310 and you'll see.
The Remington site has all sorts of interesting stuff. The other day I stumbled across some deeply discounted parts on close-out; but, was not able to find them again the next day. How did you find the archives? I wonder why the Spartan site didn't link to the 310 archive.