Why would you pair it with a full size cut down frame?JD
It would give you a full grip on the gun, allow you to use the holster that you already own for a full size or Compact, and allow you to run the full 17 round magazines which would be easier to grab and reload. I imagine you could also control the recoil on a full grip slightly better than you could on a subcompact.It would be a $40 upgrade over the standard SIG P320 since that would be the cost of a new grip frame.