HOME > ATF Rules > ATF Rule 2021R-05F - 80% Lowers

Please click on the link below to view the ATF's letter that shows what
is considered a firearm and what is not with regards to 80% lowers.

This letter is dated 09/27/2022.
Individual state laws still apply.

LINK --- ATF 2021-05F 80% Lowers 09-27-2022

It is the customers responsibility to know all applicable laws that apply to them. Please complete your research BEFORE making a purchase. Contact your local FFL or the ATF directly with any questions. MAS Defense LLC is not responsible for any city, county, state or federal laws that you (the purchaser) do not comply with.