Pro-Shot Shotgun Chamber Tool With Handle And Brush 12 Gauge. Helps stop misfires and poor ejection caused by chamber fouling. Excellent for use on semi-automatic shotguns. Bronze brush is replaceable. Replacement brush items are 12C and 20C. Package Contents: Pro-Shot Shotgun Chamber Tool With Handle And Brush The Pro-Shot Shotgun Chamber Tool With Handle And Brush 20 Gauge CH20 is a quality addition to the Pro-Shot lineup. For more great deals on Chamber Brushes by Pro-Shot please browse our Pro-Shot Gun Cleaning Kits page. Pro-Shot Shotgun Chamber Tool With Handle And Brush 12 Gauge