Otis Technology Brush/Mop Combo Pack .410 GA Bronze. This Gun Bore Mops comes with 1 bronze bore brush and 1 cotton bore mop and it is available in a wide variety of calibers including 10mm auto 12 gauge .223 remington .270 Winchester and many more. Otis brushes have a proprietary Tufcor core wire that resists corrosion and has a tight twist to retain the bristles ensureing the brushes last as long as possible. Snag this combo pack today to upgrade your cleaning equipment. Specifications for Otis Technology Brush/Mop Combo Pack: Manufacturer: Otis Technology Fabric/Material: Bronze Quantity: 2 Color: Bronze Features of Otis Technology Brush/Mop Combo Pack The bore mops are densely packed highly absorbent cotton. Otis specific brushes have the size indicated on the stem ensuring you grab the right brush every time. Package Contents: Otis Technology Brush/Mop Combo Pack Otis Technology FG-541-MB: Brush/Mop Combo Pack .410 GA Bronze