Wilson Combat makes a 9mm in a full size frame & slide, and I believe that they still have a sufficient number of alloy frames (full size), left over from the LW Protector Series. So I guess it is possible for them to build you one in that configuration. Give them a call at: 800-955-4856 and ask for Nick or Greg in sales.
STI Trojans can be had in 9 mm
There are some Colts floating around in 9 mm
Kimber has a special edition model in 9 mm, but it is full sized
IIRC, Springfield Armory had some 9 mm offerings