The child, who was receiving lessons on how to fire an Uzi 9mm, accidentally killed 39-year-old Charles Vacca when the recoil from the weapon sent it over her head.
Mr Vacca was fatally wounded, and later died at University Medical Centre in Las Vegas.
The incident happened at the Bullets and Burgers range near Vegas, and was reportedly filmed by the girl’s parents.
Speaking to The Telegraph UK, owner of Bullets and Burgers Sam Scarmardo said: “We really don’t know what happened. Our guys are trained to basically hover over people when they’re shooting.”
Police have confirmed that no charges will be filed against the gun range.
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