Whats an "ultra carry"? If you mean Ultra Compact, you can send it back to Springfield. Aside from that, make sure your technique is right and it is actually the gun shooting low and not you.
Call and talk to Deb Else at Springfield with your problem and she will solve it one way or another. She is great to work with. You can find the number on the website and it is probably in some of your paperwork.
