Hey guys, I've seen/shot a factory original M14 semi. Says so right on the receiver, originally came that way. The bit where the selector switch goes is smooth, never milled out, factory original delete. I'll have to check the manufacturer next time I get a chance, I though it was Springfield armory, but I'm not certain. The guy I know that has it has had it for many years, and says it's a rare gun.. I guess it is
Point being, if the one I know of exists, there must be more...