The Breakthrough Clean AR-15 upper brush set is an essential kit for enhancing your firearm cleaning routine. It includes a precisely sized upper receiver brush and bolt carrier brush, specifically designed to remove stubborn carbon deposits from the receiver and bolt carrier, ensuring your AR-15 operates at peak performance. The set also features a chamber brush, chamber mob, and star chamber pads, which provide a specialized approach for cleaning and lubricating hard-to-reach areas within the star chamber. Additionally, a nylon bore brush is included to maintain a pristine barrel. This comprehensive solution from Breakthrough Clean ensures thorough maintenance of your AR-15. A nylon bristle brush designed to effectively remove carbon buildup from the upper receiver, ensuring optimal functionality The Efficient Bolt Carrier Brush (1) features nylon bristles specifically crafted to effectively remove stubborn carbon deposits from the bolt carrier, ensuring smooth operation The nylon bristle brush is specifically designed for .22 caliber firearms, providing a comprehensive cleaning of the barrel to enhance accuracy and performance The CHAMBER MOP (1) is crafted to meticulously clean the chamber, effectively eliminating residue and buildup to maintain consistent firing performance Brass chamber pad adapter - this adapter facilitates the correct application of the included chamber pads, ensuring efficient cleaning and lubrication These uniquely designed pads are ideal for accessing difficult-to-reach sections within the star chamber, ensuring comprehensive cleaning and lubrication to improve firearm performance The cleaning kit provides all essential accessories for a comprehensive cleaning of an AR15 upper receiver Each component is designed with 8-32 threading to ensure universal compatibility