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A court just threw out the federal law that says you can only buy a handgun at 21. So now 18 year olds can purchase a pistol."
This ruling was issued by a Federal judge in Virginia. It is under appeal. I expect that it will find its way to the Supreme Court.
The whole concept of an age limit will come under scrutiny, if one can have mutilating, irreversible surgery for a perceived psychologic disorder at virtually any age, why not the purchase of a firearm?