Pro-Shot 50 Caliber/12.7mm Nylon Chamber Brush

Pro-Shot Chamber Brushes are made with a tightly wound brass core and oversized extra thick fill Nylon bristles. The thicker, stiffer grade bristles allow for back and forth action and eliminate heavy fouling fast. FeaturesNylon Pro-Shot Bore Brush - Precision Engineered Design, Fit, & FunctionSuperior Heavy Duty Stiff Nylon Bristles with Extra Thick FillPrecision #8-32 ThreadsMade in USA