Question. A internet buddy took his rifle for service. The gunsmith told him the rifle had certain markings that could make it a class 3 gun even though it is semi auto. I asked for further details but did not receive a good explanation. I have yet to get an explanation of what the markings are or what type of rifle this is. Perhaps my buddy is paranoid to say,who knows. I know the question and information is vague but could there be any truth to this?