how old do u have to be to own a ar 15 rifle
Many States require the age limit to be 21 and older. There are a few states where you can be 18 to own firearms. Please visit this site for more information on the AR 15: http://www.ask.com/wiki/AR-15
The legal age to be able to own a AR 15 rife all depends on the state you live in. In Massachusetts you cannot own one unless you are 18 years of age.