How old do you have to be to buy an AR 15 in North Carolina?

In North Carolina, you must be at least 18 years old to purchase an AR-15 or any other rifle. Additionally, buyers must pass a background check conducted by the National Instant Criminal Background Check System (NICS) at the point of sale. It's important to note that while federal law allows 18-year-olds to buy rifles, state laws and local regulations may impose additional requirements.