The principle components of the Otis System are so well built that they have a lifetime warranty! The circular all-caliber patches are mode of 100% cotton, and unlike cheap synthetic patches are not dissolved by the bore solvent, turning into plastic gunk left on the rifling. The tight weave of these patches actually pulls metallic copper flake buildup out of the grooves rather than leaving fibers embedded along the bore.

You can clean your gun with the Otis kit thousands of times without a brass component ever scratching your muzzle or bore. Each kit comes with detailed information on how to properly clean and care for your firearm. Try the Otis System - it will last a lifetime, and you'll spend more time shooting and less time cleaning!