Sorry if this is a dupe. If I order a lower receiver, which I have to buy as a regulate firearm, am I free to assemble with any upper I desire, e.g., pencil barrel/M4 profile since it is ALREADY "voluntary registered" as a regulated firearm?
I found good deals on lower receivers and uppers online, so before I assemble, I wanna know...
Thanks in advance for any expert advice.
I found good deals on lower receivers and uppers online, so before I assemble, I wanna know...
Thanks in advance for any expert advice.