I know this particular rifle because I have a semi-auto version of it. Over the years (especially when sears only sold for $3,500)I've toyed with the idea of buying a sear and having it professionally converted. But, honestly, I already have one registered machine gun. Once the FNC is converted it would be very difficult and not worth it to turn it back into semi-auto only. So, I would be taking one more rare FNC semi-auto permanently out of circulation, and I just can't bring myself to do that. I do believe there are more registered full-auto sears out there than there are semi-auto FNC's. I could be wrong, of course, this is just a guess.