Has anyone seen one or heard about the new slim frame Glocks? This slim frame was advertised on their web site some time back and a couple of models say slim frame but there seems to be no info about which models have it which don't or if they can be ordered with this new slim and trim design. I seems to reduce the circumferrence of the grip about a quarter inch in the larger frame guns. Also is everyone stocking up on hi-cap magazines? I can't find them anywhere, I need some for the G21.