The gun did not kill anyone in Orlando. A hate-filled religious fanatic did. He had all of he background checks, there was no "loophole". Just like Sandy Hook or Va Tech, or San Bernadino there is not a single "common sense" gun law that would have prevented the murders. The brand of gun had nothing to do with it, the type of gun had nothing to do with it. A semi automatic rifle comes in many calibres and various amounts of plastic. The scariness of the gun had nothing to do with the attacks. Any gun short of a muzzle loader could have accomplished the evil task. The only gun laws Hillary wants is total confiscation. Then you too are a potential victim.
Read some history. The Mongols managed to wipe out entire towns and cities without guns. Man has always had a vast capacity for killing his fellows. The only remedy is self defense.