The Nylon Brushes are constructed of a material that is unaffected by most modern powder and copper solvents. This resistance is a benefit over bronze brushes. The bristles are designed to be very ridged providing maximum bore scrubbing performance.
The AR15 Brush Combo contains the critical components you need to keep your AR15 chamber and bore carbon-free. It contains a star chamber brush and star chamber mop for cleaning inside the hard to reach star chamber. Star chamber pads help collect left-over carbon while applying the perfect amount of oil or solvent. The .223/5.56mm bore brush scrubs baked-on carbon from lands and grooves.