Bore Tech's Double Ended Gun Cleaning Brushes are an essential tool for cleaning all those hard to reach areas where carbon, copper and oil residues hide. These brushes feature a double ended design that provides a large, contoured series of nylon bristles to clean open areas while the short, stiff, narrow bristles tackle hard to reach areas. Great for use on bolt faces, actions, pistol slides, revolver cylinders, AR Bolts, AR Bolt Carrier groups and any other place where fouling is found.Features:Double ended designGreat for hard to reach areasGreat for use on bolt faces, actions, pistol slides, revolver cylinders, AR Bolts, AR Bolt Carrier groups