I'm sure this has been covered a million times already but if I bought a SBR upper what all song and dance to I have to go thru to legally push the receiver pins thru it?
Ok so if I bought the SBR upper I'm in the wrong without having the registered lower first? I know it is illegal to put the two together without going thru all proper steps.
Its best to just not have it at all until your Form 1 is back in your hands.
If you've got a friend with a registered lower, you can always keep your upper at their house so you can at least shoot it while you wait for your paperwork.