If you are making a firearm without the intent of making it to sell it , you are okay.
If you ARE making a firearm with the intent of selling it you are "in the business" of making firearms. If you do this without a license you are commiting a crime.
Now , if you make a firearm (without the intention of building it to sell) and you later decide to sell it , it would be legal to do so.
You know what your intent is. Don't do anything illegal.
Making for yourself = okay
Making to sell = illegal
If you ARE making a firearm with the intent of selling it you are "in the business" of making firearms. If you do this without a license you are commiting a crime.
Now , if you make a firearm (without the intention of building it to sell) and you later decide to sell it , it would be legal to do so.
You know what your intent is. Don't do anything illegal.
Making for yourself = okay
Making to sell = illegal