Yes it will. I drove to Outpost Elite guns and they have a Mod.2 full size in stock. We swapped slides and barrels with each gun. The frame is the same width. Everything about the interiors of the frame and the bottom of the slide looked very similar. It slides on and locks. The trigger fires the pin. The only difference we could see is the magazine sits at a different angle. The Mod.2 is more of an angle. The magazine does not impede anything on the slide. They would not let me load a round to test jamming. Unless I buy, I will not know. I have called Springfield Armory twice with no response.
I own a 9 mm XDM 5.25 and a XD 9 mm 4" mod 2. After reading your post I swapped the slides and tested them at the range this weekend and I had no problems at all. I even took them to a club match and they ran great.
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