Here....Supreme Court Justice Scalia explains this to you.....
https://www.supremecourt.gov/opinions/15pdf/15-133_7l48.pdf
That analysis misreads Heller. The question under Heller is not whether citizens have adequate alternatives available for self-defense.
Rather, Heller asks whether the law bans types of firearms commonly used for a lawful purpose—regardless of whether alternatives exist. 554 U. S., at 627–629. And Heller draws a distinction between such firearms and weapons specially adapted to unlawful uses and not in common use, such as sawed-off shotguns. Id., at 624–625.
The City’s ban is thus highly suspect because it broadly prohibits common semiautomatic firearms used for lawful purposes.
Roughly five million Americans own AR-style semiautomatic rifles. See 784 F. 3d, at 415, n. 3. The overwhelming majority of citizens who own and use such rifles do so for lawful purposes, including self-defense and target shooting. See ibid. Under our precedents, that is all that is needed for citizens to have a right under the Second Amendment to keep such weapons. See McDonald, 561 U. S., at 767–768; Heller, supra, at 628–629.
Your right to bear any damn weapon you choose does not exist.
You may bear bolt action rifles, single action pistols, pump action shot guns.
But not fully automatic rifles without special permits and left licenses..
why? Public safety.