Indiana man Timothy Gramza fights armed robber over moped (VIDEO)

An Indiana man refused to back down from an armed teenager trying to steal his friend's moped, defiantly shouting and pointing into the mouth of a long-barreled handgun.

Timothy Gramza, 56, was outside his South Bend, Ind., home packing some wood into his truck when the 17-year-old approached, got on his 70-year-old friend's moped and tried to turn it on, ABC News reported.

Four friends were standing outside the part of the house, and a security camera perched on top captured the entire encounter, according to ABC.

Police released the video and still shots from it Tuesday, hoping someone in the public will be able to identify the suspect so an arrest can be made, the South Bend Tribune reported.

The nearly two-minute clip shows Gramza move toward the would-be robber, who pointed the gun directly at him.

Gramza begins struggling with the robber, and the teen eventually hits him on top of the head with the gun and later fires a shot at his leg, the South Bend Tribune reported.

As the suspect leaves the scene without the moped, Gramza is seen firing six shots at him with his own gun, according to the newspaper.

"You've heard the expression, don't take a knife to a gunfight; the only thing [Gramza] has was an armed finger," South Bend Det. Sgt. Eugene Eyster told ABC News. "It's one of those when you're telling yourself, either this man has a lot of guts or he's about to lose all that he has."