I’m sure there are others, but The Last Gun is the only Spaghetti Western I can think of that begins with voice-over narration. “The fast draw holds the law in its hands, and the big gun was boss,” says a friendly cowboy voice that would be better suited for a Disney animation. “Now being boss wasn’t just a matter of opinion. You had to be fast, real fast—faster than Jim Hart’s left hand.”
We then see some washed-up old man who should be holding a pitchfork instead of gun challenge Jim Hart (Cameron Mitchell) to a duel. Hart fails to talk the guy out of it, so he has no choice but to use his left hand to draw a gun and shoot him down dead.