Bore-Max Speed Clean Upgrade Set is a combo set of bore brush, cleaning jag and patches, a complete system for faster and easier bore cleaning. Carbon and copper build-up impact performance and accuracy and overtime will cause degradation of the barrel. As accumulated layers harden, bore cleaning is a chore. The goal is simple: get it done right and get it done faster. Bore-Max Speed components maximize bore contact to yield better results. This means less passes to clean your bore and less time spent on the chore.Bore-Max Speed Brush amplifies scrubbing effectiveness thanks to an optimal balance between bristle density and bristle flexibility to reach the lands and grooves of the bore. With each pass it loosens and removes baked-on carbon and exposes coper deposits to be chemically dissolved. Bore-Max Speed Jag and Patches are precisely sized to provide the optimal compression and contact to wipe the inner surface of the bore. Tight along the entire length, yet still relatively easy to push through. The Speed Jag and Patch system gets more patch material in the bore, eliminates bunching, and maximizes the effectiveness of each pass-through. Speed Patches are a synthetic material that has shown superior absorbency over cotton and is better at absorbing fouling and spent solvent in the bore and is more effective at picking up and trapping crud. PRO-TIP: Speed Jag and Speed Jag Patches are specifically designed to work in tandem for a precise bore fit. Do not use in combination with other jags or patches.