All the rust you will miss. These are incredibly robust weapons.
Can your steel frame gun do all this: Glock 21 Torture Test - Theprepared.com
That is a great price btw.
-Doc
Are you a bit biased Doc? I'm a Glock shooter, so that's fine by me! My Gen1 Desert Eagle 45 had the kind of bluing that would rust minutes after being handled. Had to have it stripped and Durcoated and now she's perfect for my needs. I'd put it up against the Glock torture test anytime, but I probably won't like the outcome. Then again, it is an IWI product so who knows what might happen.