That was a thought of mine also. However, the frame is made that it does not have the feed ramp built in like a typical 1911. In this model, the feed ramp is part of the barrel and the frame has a cut out milled into it that the feed ramp portion of the barrel goes into that slot. Otherwise, a slight modification to the ejection port would be all that is needed to make it a "convertible".Maybe you can get a .45 barrel and drop it in to make a "convertible"