Can I Build an AR-15 in South Carolina?
Woody's answers are based on published federal and state law. Not legal advice. Consult a licensed attorney for your specific situation.
Yes, you can legally build an AR-15 in South Carolina. The state has no additional restrictions beyond federal law for building rifles from component parts or 80% lowers.
What This Means for You
South Carolina follows federal firearms law without adding state-level restrictions on rifle assembly or ownership. This makes it one of the more builder-friendly states for AR platform construction. You'll need to follow ATF guidelines for home manufacturing, but the state won't add extra hurdles to your build process.
The Detail
Building an AR-15 in South Carolina is straightforward from a legal perspective since the state doesn't impose additional restrictions on rifle construction beyond what federal law requires. You can purchase and complete 80% lower receivers, assemble rifles from parts kits, or build complete rifles using any combination of components that result in a legal configuration under federal law.
The key federal requirements still apply to your build. If you're manufacturing a rifle for personal use, you don't need any special licensing or registration. However, you cannot build rifles with the intent to sell them without proper federal licensing. Your completed rifle must have an overall length of at least 26 inches and a barrel length of at least 16 inches to remain in rifle configuration and avoid NFA restrictions.
South Carolina doesn't have an assault weapons ban, magazine capacity limits, or feature restrictions that would limit your AR-15 build options. You can install standard capacity magazines, adjustable stocks, flash hiders, and other common AR accessories without state-level legal concerns. The state also doesn't require registration of completed home-built rifles.
When working with 80% lowers, remember that federal law considers these unfinished receivers until you complete the machining work. Once you finish the lower receiver, it becomes a firearm under federal law. South Carolina doesn't add any state requirements for marking or serializing home-built firearms, though federal recommendations suggest adding identifying information.
Build Impact
You can build whatever AR configuration you want in South Carolina as long as it meets federal requirements. The lack of state restrictions means you won't need to worry about feature compliance or capacity limits that complicate builds in other states.