An article from AZ Central calls it a "stun gun" so there's a disparity in the information (big surprise there). You article also calls the armored car guard's weapon a "service revolver" while there's no indication of WHY it's calle that. The AZ Central article didn't distinguish.
Phoenix police: Man tried to rob armored-car guard using stun gun
Of every one hundred men, ten should not even be here. Eighty are nothing but targets. Nine are real fighters, and we are lucky to have them, for they make the battle. Ah, but the One... One of them is a Warrior... He will bring the others back.
"Wrong door, buddy!"
Let no man's ghost say my training failed him.