Your statement “You cannot put the 18 back on and sell the weapon” is incorrect. “Once a machine gun always a machine gun” is correct. That is not true with short barreled rifles or shotguns. How can it be a short barreled shotgun if it doesn’t have a short barrel? It is what it is as it is configured at that moment.
A form 1 is the form used to make and register a title 2 firearm. A form 4 is the form to transfer a title 2 from one individual or organization to another. I make this statement not to be a dick, but to correct an inaccurate statement for those who may be interested in title 2 firearms.
https://www.ar15.com/forums/Armory/Deregistering-a-SBR-lower/17-522768/
The misinformation with title 2 firearms never ceases to amaze me.
It is only a short barreled shotgun when it has a short barrel. Put an 18 on it and it is not a short barreled shotgun. Take it anywhere a shotgun is legal, even sell it with the 18 if you like. NFA would like to know it’s been “converted” back to a title 1, but that isn’t even necessary. Unlike machine guns and NFA’s “once a machine gun always a machine gun” position, an SBS or SBR is only a title 2 when configured as a title 2.
You do not give up any rights. .gov can’t come into your home anytime they wish. Still America folks, probable cause and a warrant is necessary to enter your home.
Many thanks for all the knowledge sharing on the this forum which helped me personalize my M4. Upgrades:
Collapsable stock, Limbsaver pad, FFT bolt handle, Briley CF mag tube with Nordic extended follower, GG&G bolt release, FFT trigger pack with A&S Trigger guard, TTI extended safety, TTI extended carrier, Carlson breach choke, Tango Arms stippled forearm, and Meprolight night sights.