Yea, there are actually a few differences. Loaded chamber indicator, different barrel lengths, optic ready slide.

But yea, pretty much every p320 is interchangeable with every other. I have one of my m17s essentially loaded out like like an x-five with the weighted grip and magwell. Could just as easily slap on my x-compact grip though.

Just find the version of the gun you want with the features you want. It can be tweaked. But you’ll end up just spending as much or more than just getting those features initially.