Free: Contests & Raffles.
I believe it identifies categorically by its serial number no matter what you do to it.Thats also why its illegal to alter weapons. Not modify or customize but alter.
What if you bought it as an stripped lower? It falls in the "Other" category so what it was originally sold as is a blank receiver.
Hypothetically, say someone has a side charging AR upper, and a stripped lower. If that person removed the gas tube and plugged the gas port, then assembled the rifle, is that now a bolt action rifle or is it an evil assault rifle and subject to all the applicable evil rifle laws?
Isn't one of the requirenments of an "Assult Weapon" is that it has a "removable" magazine? If an AR style rifle does not have a removable magazine, which many south of us do not, then is it still an Assualt Weapon?