Owning a gun comes with certain responsibilities. You should certainly spend time to maintain your rifles. The eFECT II Multitool can help. It is a compact device with a M249 style carbon scraper for cleaning out the inside of the bolt carrier. There is also a steel scraper for cleaning caked on carbon from the bolt. There is also a pick available for cleaning the ejector end of the bolt.
The eFECT II has a flathead driver, a takedown pin punch, and a front sight adjustment tool for iron sights. A coyote nylon MOLLE compatible sheath is also included. Sets you back $100.99 at this time.