Curiosity

[Bill_in_VA]

Originally Posted by MikeP

On the home made kit assemblies, I believe if you do sell one you have to put an identifying stamp and a number on it-sic "Mike's Guns #1"
Maybe even a one per year limit if you do sell them without a Class 7.

Too easy to break some law you never heard of if someone takes an interest,

Nope. There’s no limit, nor is there any federal requirement to assign a serial number. Not yet anyway.
Back to selling a homemade gun, again, it boils down to “intent” - a vague and anomalous standard for sure, based as much on the length of the judge’s arm as anything else a lawyer may or may not sucessfully argue. It’s much the same as selling off the culls from your collection versus seling on a regular basis “with the principal objective of livlihood and profit.” (ref. 18USC 921(a)(21) and (22).)