My .45 Shield has replaced my 9mm Shield as my pocket carry. It's a great gun: easy to shoot, reliable, accurate.

I wondered about the lack of 2.0 on the frame; did some research (mainly crying HELP! here) and checked with S&W and indeed, all the Shield .45s are "2.0." Smith took the improvements in the .45 and applied them to the 9 and 40 and that's how they got to the 2.0 on those two guns.

Don't hesitate for a minute about getting one. But, your 9 will get dusty in the safe as there it will stay.