If the safety moves over into the automatic notch, all that means is you have a lever from an AVT. The regular lever is rounded on one side to roll into position, and flat on the other to stop; the auto one is fully rounded. The trigger group is likely still a semi-automatic one (an auto group would be Prohibited).
Plenty of rifles were put in the beefier AVT stocks when re-furbished; they're marked with an A and have notches for the lever on either side of the trigger. They had a bunch of A stocks left over since they didn't produce as many autos as they thought they would, plus the thinner standard stocks often developed cracks and needed re-enforcement. Parts were mixed willy-nilly from what was available and would fit. If you have a double-sided notch and lever, you can pretend it's an AVT, but if it doesn't fire continuously on a single trigger pull (and I hope it doesn't), it isn't really.
I've never heard of a rifle showing up with an AVT stock, safety, and trigger. However, if *I* found one like that, no-one would ever know.
