As of 2024, the legality of 80% lowers in the United States varies by state and locality. An 80% lower is an unfinished firearm receiver that requires additional machining to become a functional firearm. Federal law does not classify 80% lowers as firearms, meaning they can be sold without a federal background check.
However, some states have enacted specific laws regulating or prohibiting the sale, possession, and use of 80% lowers. For example, states like California, New Jersey, and New York have restrictions in place. It’s essential to check your local laws to understand the regulations that apply to 80% lowers in your area.
Always ensure compliance with both federal and state laws when considering the purchase or use of 80% lowers.
