The new rule (ATF final rule 2021R-08F) was published on the ATF’s website today and is set to be posted on the Federal Register on Monday, one day before the industry’s largest trade show, SHOT Show. The regulation will affect millions of Americans that currently own pistol stabilizing devices. What has been considered pistols for years will now be regarded as short barreled rifles (SBR) and be subjected to the National Firearms Act (NFA).