I know what you mean squeeze. I meant that you won't see any recievers that even resemble an M-14 because of the selector switch. Throw an auto sear in an AR-15 that doesn't have a sear block (anything other than colt) and it functions the same as an M-16. The part registered can be the sear, reciever, lightening link, whatever but it is not the actual reciever of an M-16 that makes it full auto. Take a bare M-16 reciever, put an AR lower parts kit in it, and you essentially have an AR-15 with M-16 written on the side cause it won't go full auto. (I know you can't do this.) I have seen AR lowers with a selector stop at FA, but obviously they won't go full auto and the same with HK 94's. I meant that since the parts that make a M-14 go FA are built in to the reciever and therefore you will never ever see a semi-auto with a true M-14 look-a-like reciever. I know how the ATF treats "once a machine gun always a machine gun" I'm talking more about civilian sales. This is the way it was explained to me at least. I'm interested to hear your thoughts on this squeeze?