In order to fill out the paperwork properly you need to at least know what length barrel and caliber you intend to register. Without a barrel under 16" you just have a rifle. With a built Lee you just have a built rifle, but not necessarily a short barreled rifle.
300blk at subsonic speed has about the same pressure as a subsonic 9mm. 300blk is .308 in diameter 9mm is .356 in diameter. The hole is plenty big enough.
I have an idea for a real custom can, but I need a custom barrel built too. 16" 300blk barrel with pistol length gas. Thread on 30 cal can with interrupted threads that reflexes back over the barrel to the gas block and only adds 4" to the overall length. And it must fit under a Nordic tube...
Nope, just cause you have nfa items doesn't give them the ability to come search your home whenever. That's an old wives tale. And the suppressor is good to go because it's transferred as an "other" on the 4473, yes it's a firearm, but it's an other
Incorrect. The feds cannot just come knock on your door and ask you. They have to set up an appointment before hand. You can cross state lines with a suppressor at any time no paperwork needed. Now machine gun, or SBR needs paperwork. But pick a day to send in the forms every year to any state...