When bowling in a league and the ball goes into the gutter it is marked as a gutter ball. Even if the ball bounces out of the gutter and knocks over pins those pins do not count.
There are only three 9mm revolvers , (as proposed in the story), on the market (in 2018): Ruger New Model Blackhawk convertible with .357 Magnum and 9mm Luger cylinders, Taurus Model 85RB and Ruger LCR. Ruger's 9mm revolver is their well-received LCR.