Kleen Bore Chamber Mate Shotgun Brushes 12 Gauge. These Kleen Bore products are usually a component of the Kleen Bore ChamberMate Shotgun Cleaning Tool but they can be used as standalone cleaning kits for tough residue and buildup in shotguns. The Kleen Bore Chambermate Bronze Brushes are huge tapered phosphor bronze brushes that don't take it easy on excessive wadding unburned powder and other detrimental scuzz that can collect in your shotgun. Use this Kleen Bore cleaning kit on your forcing cones muzzle ports shotgun chamber choke tubes or whatever else needs a vigorous scrubbing. Kleen Bore ChamberMate 12 Gauge Shotgun Bronze Bristle Brushes can return your shotgun to its pristine factory condition. Specifications for Kleen Bore ChamberMate Shotgun Brushes: Material: Phosphor Bronze Caliber: 12 Gauge Shotgun Features of Kleen Bore Tapered Bronze 12 Gauge Brushes: Heavy-duty tapered bronze shotgun cleaning brushes Good for cleaning choke tubes chamber muzzle ports forcing cones and more Compatible with Kleen Bore ChamberMate Shotgun Cleaning Tool Designed for 12 gauge shotguns Package Contents: Kleen Bore ChamberMate 12 Gauge Brushes SC205 KleenBore 1010215: Chambermate Brush 12 Gauge