When you get that book out with nomenclature more to your liking, that's what we'll use. In the meantime some of us have to make do with what info we have out of books we can afford. But I do understand, I've been seeing little variations in carrier/follower assemblies lately, some of the 98 assemblies have numbers on them, for example a 2 on one, like they could be swapped if a rifle was having a particular problem.