It falls beneath the SBR rule if any rifle got a barrel lower than sixteen". So Indeed, you will need to register it if you intend to utilize a brace or buttstock on your lower. Your best wager is to: If You aren't disabled and need to get an AR https://noveske-sbr-for-sale28395.bloginwi.com/51138670/detailed-notes-on-noveske-for-sale