if you want a 9mm in a 1911 platform look at the Springfield Armory EMP, it was designed around the .40 and 9mm rounds and the whole thing is scaled down a little from a standard .45 frame, it has a 3.5" bull barrel and an alloy frame, will fit well in the commander holsters. Runs around $1000
I have an EMP .... love it. I'd love it more if it had a 4" or 4.5" barrel, a steel frame, and a different recoil spring set-up. Oh, and a threaded barrel, too.
The EMP was originally designed, as I understand it, around the .45GAP- the only dimension that really changed much was the grip was made smaller front to back than the standard 1911 needed to be to feed the longer .45ACP round. The height and width of the slide are the same as a standard 1911- they fit in the same holsters as 3" 1911's form other makers...... and it is a 3" barrel. A very thick 3" barrel, too- it kind of looks ridiculous when you take it apart .... the frame on the 9mm is aluminum alloy, the .40 has steel frame.
The 9 weighs just 26oz. empty, and is pretty loud and snappy, loaded with personal defense ammo .....
