Ruger New Model Blackhawk, .30 Carbine cal. single action revolver.  Serial #51-31163.  Excellent condition.  Has the transfer bar.  7 1/2" barrel has an excellent bore, fixed front and adjustable rear sights.  98% blue finish with a light index line on the cylinder.  The action locks up solid.  Ruger marked smooth wood grips are in great shape with some light marks.