Send it back to Sig again. You will not be the first to have to do so.
If they cannot make it right demand a new gun or a refund.
Ask for Bill Silver. LOL
If you can get a refund get a Colt.
-Fast is fine, but accurate is final. The trick is learning to take your time when you're in a hurry." -Wyatt Earp
-Its a tool box... I don't care you put the tools in for the job that's all... -Sam from Ronin
-It is the mark of an educated mind to be able to entertain a thought without accepting it. -Aristotle
-Without deviation from the norm, progress is not possible.-Frank Zappa