What led you to that conclusion? There are multiple folks in this thread https://www.thehighroad.org/index.php?threads/braced-pistol-stamp-watch-thread.915513/ who have received their stamps.For one thing, the "free" SBR registration did not get a stamp. None, nada, zilch. Instead, the approved form is marked with Approval Conditions of "Pursuant to ATF Final Rule 2021R-08F".