VIDEO: Girl, 9, kills Arizona shooting instructor with Uzi in accident
They said that Charles Vacca, 39, had been standing next to the girl at the Last Stop shooting range in White Hills near the Nevada border on Monday morning showing her how to fire the automatic weapon.
When she pulled the trigger, the recoil forced her aim over her head, and Vacca was shot in the head, according to a Mohave County Sheriff's Office statement.
Vacca was airlifted to nearby Las Vegas, where he was pronounced dead. A spokesman for the sheriff's department did not know how many times Vacca was shot or what model of Uzi the girl was firing.
Some Uzi models are capable of firing up to 1,700 rounds per minute, or almost 30 rounds per second, according to the manufacturer's website.
The girl, whom police did not identify, was at the outdoor range with her parents.
Last Stop, which includes a restaurant, bar and RV park, has a "Burgers and Bullets" program that offers customers lunch with a trip to the range, where they can choose from among more than 20 automatic weapons to shoot, according to its website.