Ten years ago at Bisley, the Trafalgar Meet, one of the traders had a genuine USMC '03 with its correct x8 Unertl scope and sling. On sale from a museum collection, it was completely documented from Parris Island to the last owner, who left it to be sold to the highest bidder on the day - every penny from the sale was to go to an unnamed charity.
We hung around until about 7.30 just to see what had happened - it went back to the USA for £17950 + plus 20% VAT, but the buyer could claim that VAT back.