Birchwood Casey Bronze Bore Brush 20/28 Gauge 3-Pack. These brushes combined with Birchwood Casey's Bore Scrubber will remove tough copper lead and carbon fouling from the bore of your firearm. Features/Specifications: Includes 3 brushes Made from Phosphor Bronze for durability Tough scrubbing power Protect your firearm. Specifications for Birchwood Casey Bronze Bore Brush 20/28 Gauge 3-Pack: Manufacturer: Birchwood Casey Color: Bronze Quantity: 3 Gun Type: Shotgun Gauge: 28 20 Package Contents: Birchwood Casey Bronze Bore Brush 20/28 Gauge 3-Pack The BIR 41231 BRONZE BRUSH 20/28GA 3PK is a quality addition to the Birchwood Casey lineup. For more great deals on Cleaning Rods & Accessories by Birchwood Casey please browse our Birchwood Casey Gun Cleaning Kits page. BIR 41231 BRONZE BRUSH 20/28GA 3PK