Ah, but the question remains are the mongrel parts that were installed when the rifle was first built? Hope springs eternal. But there ARE clues. Like Garands, one may have a rifle where all the parts would likely be found as built, and then there's the ones that have not only "the right parts all flying in formation" but matching condition to boot. Any signs of rebuild, and it becomes merely "correct". Very small numbers left, indeed! Too many otherwise idle hands post WWII. But impossible?