I apologize if this question has already been asked and answered, if someone could point me in the direction of the answer I would be grateful. I believe I understand the process of obtaining a Class III license, stamp, whatever you choose to call it. I just want to make sure I'm correct in what I'm looking at. I live in VA and I'm interested in purchasing an AR variant with a shortened barrel and select-fire operation. To begin with I understand it's possible to purchase an "SBR" but is it possible to purchase an SBR with select fire capability as a civilian? Would one tax stamp cover the weapon or are you required to essentially buy two stamps (one for the shortened weapon, one for the select fire operation) Sorry for the basic questions and thanks in advance for any help.