Cleaning the carbon buildup from the mil-spec star chamber of an AR-15 is a pain, but it must be done to keep your gun in the action. The cleaning pads easily screw onto the end of any cleaning rod and are precision cut to fit the lugs of the hard to reach places in the AR-15 chamber. The pads are also made of a naturally absorbent material that works with your CLP to clean and lubricate. Real Avid AR15 Star Cleaning Pads, get clean so you can get back to shooting.