Otis, a trusted manufacturer in firearm cleaning supplies, put together a great Tactical Cleaning System. This gun cleaning kit will work perfectly with all rifle calibers from 22 to 50 and pistol calibers from 22 to 45. A kit that covers rifles and pistols with a variety of calibers saves you the money and time in buying a kit for different calibers in every pistol and rifle you own. The convenient zippered pouch makes it easy to carry along to the range or in a go bag. Inside the zipper pouch, you'll find a pocket to hold Otis Cleaning Patches and elastic slots to hold solvents, lube and oil.