Another one of the of the M1 carbines issued to Audie Murphy is on display at an Army Museum at some fort. It was his, turned in and had a post war rebuild. Someone in Ordnance apparently tracked it down by serial number, and it was requisitioned for the museum after the rebuild.
The one in the earlier post is still, or has been restored to original "as issued" in 1943 condition. I have seen a photo of the rebuilt Audie Murphy carbine "in situ" in an army museum. If it was the same one as the earlier post, it must have been restored to original since then. There was some discussion on the rebuilt Audie Murphy Carbine in the Milsurps Carbine forum, several years ago.
With that said, I have heard of several other stories about Carbines, supposedly given to private parties families directly from "Audie Murphy, himself." The funniest was not even a USGI, but an Alpine 1960s commercial receiver with some GI parts. Like PT Barnum said, "There is a sucker born every minute!"
ADDED INFO: Half way down on page (which is page 3 of a thread) is a photo of the rebuilt Audie Murphy Carbine on the Third Infantry Divisions Web site of their museum:
3rd ID Audie Murphy Carbine