They have already discontinued the Beretta 3901 RL which was the only gun that fit my wife. She uses it to trap shoot and loves it. Almost no recoil. You can find these but beware they don't have Beretta barrels now (they are putting Stoeger barrel on the ones they are unloading). The forend fit is terrible so I bought her a Beretta barrel. There are does and don't on lubrication of the gas operated Beretta.

This is a video by Rick Gump the service manager of BerettaUSA regarding the Beretta 391 maintenance.

http://www.youtube.com/watch?v=_6U4FAs51tM