The Bureau of Alcohol, Tobacco, Firearms, and Explosives (ATF) has banned bump stocks, giving individuals 90 days after the law goes on the Federal Register on Friday, December 21, 2018 to destroy or turn the devices in to the ATF.

Unlike previous bans, there is no provision to “grandfather in” the devices, which will be regulated by the same rules that govern machine guns. As such, the ATF has come up with the following guidance on how to destroy your bump stock.

To satisfy the agency, “a bump stock must be made incapable of being readily restored to its intended function by, e.g., crushing, melting or shredding the bump stock.” You may also cut the device “so long as the bump stock is completely severed in the areas constituting critical design features.” The image above shows how the agency recommends you cut a bump stock so as to make it satisfactorily destroyed.

The ATF has also put together a handy PDF guide for the various makes of bump stocks on the market, available here.