by Ryan Cleckner | Last updated Oct 6, 2026
Update: ATF Ruling 2010-10 has been superseded. ATF’s 2022 frame or receiver rule (Final Rule 2021R-05F, 87 FR 24652, published April 26, 2022 and effective August 24, 2022) superseded this ruling and replaced it with the definition of “engaged in the business” as a...
