18, just like any other rifle.
Federal law is 18 to purchase a rifle. Ask your local police if Atlanta has a prohibition on the SKS.
No. PA does not require gun registration- and the SKS is not an assault rifle- it is a semi auto rifle with a fixed magazine.
SKS
One can purchase an SKS rifle from a variety of locations. These include a good hunting store, a rifle store, and some of the larger supermarkets such as Walmart.
Value of Rifle by Norinco SKS 7.62x39 with and without wood stock?
romanian serial number 1841899n sks rifle what year is this rifle
The SKS isn't an assault rifle, and the value may range from $100 to over $1000, depending on specifics.
Plenty available.
Meters
7.62x39mm
No, it doesn't.
2-4 MOA