5ht Circuit tore apart the ATFE in the ruling against the pistol brace Final Rule. In light of the information provided and the fact that the Supreme Court is pro 2A, I doubt this will survive much further. Also, the judge's ruling specifically mentioned the use of braces as stocks as being legal, AND several points that might very well lead to the entire NFA 34 being overturned, long been a fond daydream of many gun owners.
I invite you to watch this video.
https://youtu.be/HZ5tENbpsHs?si=wJ1sR-8l3jlfyN9o