Update:

Seller claims that of all the cylinders he has this one must be a mix up. We'll see. He agreed to exchange for a "new" one. I will still try to post pics before I send it back. Thanks everyone.

BTW - Last part I need to get this baby ready! Can't wait! That's why I'm a little edgy!

Also:

Anyone/everyone know what I mean by the "drop" test? ( I'm not sure that's what it's called - plz no jokes about "dropping" the gun - I get it, haha ) Just how important is this? If I wind up with this cylinder for whatever reason, like a previous poster says, should it make a difference if it seems to be ever so "tight" or "bind"??? It's just enough friction to hold the op rod/bolt assembly up when tilting it, but a quick jar to the gun pops it loose. Maybe it's a "good" fit? Geez guys help an M1icon newbie.