Suppressors are legal, but they're regulated the same way machine guns and short barreled weapons are, and require licencing and a tax stamp. To put a suppressor on any weapon without having undergone this process would be illegal.
Yes
yes
yes
It all depends on the laws where you are.
If they meet NJ requirements.
Federal law is 18
Windham, Maine, although a lot of their parts are outsourced. For example, their AR-15 type receivers are manufactured by LAR Manufacturing.
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.
The M3 is the semi-automatic version of the Ar-15 (M4).