This rule is effective the date it is published in the Federal Register. Any weapons with “stabilizing braces” or similar attachments that constitute rifles under the NFA must be registered no later than 120 days after date of publication in the Federal Register; or the short barrel removed and a 16-inch or longer rifle barrel attached to the firearm; or permanently remove and dispose of, or alter, the “stabilizing brace” such that it cannot be reattached; or the firearm is turned in to your local ATF office. Or the firearm is destroyed.

Should individuals and FFLs be in possession of a firearm with an attached “stabilizing brace” such that the firearm constitutes a firearm under the NFA [National Firearm Act] in addition to the GCA [Gun Control Act], the affected persons or FFLs will need to choose one of the following options.

• Scenario 1: Turn in the entire firearm with the attached “stabilizing brace” to ATF;
• Scenario 2: Destroy the whole firearm;
• Scenario 3: Convert the short-barreled rifle into a long-barreled rifle;
• Scenario 4: Apply to register the weapon under the NFA; or
• Scenario 5: Permanently remove and dispose of, or alter, the “stabilizing brace” from the firearm so that it cannot be reattached.