Otis IP-316-SS-50 50 Pack Stainless Steel Ap BrushesOtis IP 316 SS 50 Includes 50 Stainless Steel All Purpose Brushes Double ends allow for large surface scrubbing on one end and precision cleaning with the smaller end. The Stainless Steel All Purpose Brush gives you the ability to scrub hard to reach places where carbon, powder, and copper residue build up Recommended for cleaning the area around the firing pin Perfect for slides, receivers and locking lugs Cleans stubborn residue on metal surfaces