Atf publishing guidelines for classifying weapons with stabilizing braces, accepting comments.https://lnks.gd/l/eyJhbGciOiJIUzI1NiJ9.eyJlbWFpbCI6ImplbmpvaG4wODA5QGdtYWlsLmNvbSIsImJ1bGxldGluX2xpbmtfaWQiOiIxMDMiLCJzdWJzY3JpYmVyX2lkIjoiODM4Mjg0MDQ0IiwibGlua19pZCI6IjExNDcwMzI5NzciLCJ1cmkiOiJicDI6ZGlnZXN