AR stands for the original manufacturer's name, ArmaLite. Most people have the wrong idea that AR means "Assault Rifle".
Yes
yes
yes
It all depends on the laws where you are.
If they meet NJ requirements.
If you are talking about the AR-15, then depending on what local we are talking about, then they are not illegal. AR-15 stands for Armalite 15, not assault rifle, and They are available to be bought in the united states in almost all areas.
Federal law is 18
catching fire is 17 ar points and mockingjay is 15 i think :)
Yes, it is, as it is already registered and tax stamped as an SBR.
The AR-15 was created by a design team led by Eugene Stoner. Initially, the AR-15 was intended to be a companion rifle to the AR-10; the AR-10 was intended to replace the M1 Garand while the AR-15 was intended to replace the M1, M2, and M3 carbines.
The AR 15 is a rifle, not a caliber. the .223 is a caliber. Usually the AR-15 is made in caliber .223.