I just bought a P320,,, It has a 3.6 inch barrel and a grip frame that holds 15 round magazines, it also has an under-rail. The box has the same serial number and says it's an X-Carry. I like it, it turned out better than I thought. The shorter slide and compact grip make a sort of a Sub-Compact Carry. The grip fits the length of the slide and looks like it was molded this length. I guess I could add an X-Carry slide and have the best of both worlds. I can't make my photos transfer..