What is the purpose of having an AR-15 gun if you can’t fire it anywhere?

There is no purpose. Period.

@ cybermystpage: the AR-15 can be converted to fully automatic using $15 worth of parts. Also, while most gun crimes were not committed with AR-15, it nevertheless is true that most MASS SHOOTINGS -- which are not the majority of gun related crimes -- are committed using AR-15 and similar weapons.

That mentally, or lack there of, is the reason you folks should be BANNED 

from possessing any weapon other than a hand gun.

There is NO "freedom of expression" first of all.

Firing a gun isn't about "expression".

Firing ranges exist.

The point of the second amendment was to allow citizens to form a militia (NOT the military!) to protect themselves from government tyranny.

The point of an AR-15 is NOT to shoot it anywhere you want, but to have it in the event that you have it if you need to join a militia to defend yourself.

You don't seem to understand the concept.

it isn't about "free of expression" -- your proposed action endangers bystanders.  A semi-automatic rifle is about being able to stand off 1/2 squad of soldiers bent on suppressing the people's liberty in favor of some dictatorship

It’s a hunting rifle ..... you hunt with it 

In my state of georgia I can target shoot anywhere on national forest land as long as you follow the rules and do it safely

You can go to the gun range.  Which seems kind of pointless.

You can fire them at a range or on your land.  An AR-15 is not a super-powerful weapon.  You can also use it for protection if someone breaks in.  This is no different than any rifle that you might own.

No idea why the ledt is so infatuated with AR-15s like they are something special.

There are gun ranges.