It should be considered the same way as stealing money from the casino, basically robbery. Obviously state law should apply.
"Penalties (NRS 200.380)
Robbery is a category B felony in Las Vegas, which carries a punishment of two to fifteen years in prison. And whenever a deadly weapon is used in the commission of a Nevada crime such as in "armed robbery
," the judge may increase the sentence by one to twenty years as long as the enhancement doesn’t exceed the original sentence. "