Bore Tech Patch Guide, Gold, 17-25 Calorie Designed to precisely align the Cleaning rod with the rifle's bore eliminating damage to both the firearm and Cleaning rod Replaceable and solvent resistant molded rubber nosecones are soft enough to provide a superior, long lasting seal and completely prevent cleaners from leaking into the chamber and action areas Designed to fit both short and long actions, these guides feature an adjustable bolt collar that firmly locks in place via the threaded brass locking handle Feature high precision CNC Machined and anodized aluminum components that will provide a Lifetime of Use Dramatically simplify and expedite the Cleaning process