It's a great idea that's already been done by a number of manufacturers very successfully... Springfield Armory with the XD Series is a perfect example. The blend of new and old works very well.Great idea to marry 1911 to Glock. My only concern is that it's probably going to be somewhat difficult to hold until Kimber starts making extended magazines with pinky support (a-la Walther PPK). Steel frame option would be nice, too.
But think of how much heavier it would be if they used steel as opposed to aluminum. I have many aluminum framed guns and they all can take a real good beating, so I don't think you would gain that much by making a heavy steel version. Just my thoughts.Steel frame option would be nice, too.
9x19 is rather powerful round for such a small gun. I think heavier frame will make it easier to control recoil.But think of how much heavier it would be if they used steel as opposed to aluminum.