The first time I ever got a hold of an Otis gun cleaning kit I was kinda overwhelmed with the amount of brushes and tools that were in it.   It was a universal rifle and pistol cleaning kit and I was kind of bothered by how much stuff was jiggling around inside the pouch.   I know now that this was a little more than what I really needed, but once I figured out how to use the kit and what all of the tools were for all of the other cleaning kits from Otis were easier to use.   This is from someone that started out with a bolt action 22LR rifle and a Hoppes gun cleaning kit from K-Mart.

The gun cleaning that I have grown to hate usually is from the AR15 direct impingement guns I own.   I have heard numerous firearms instructors tell me that there is such a thing as too much cleaning, and knowing exactly what parts to lube and clean on an AR15 is the key to firearm maintenance.   The Otis gun cleaning kits I use now are specific to the firearm I am cleaning. Hoppes boresnakes have served me well, but getting into the parts of an AR15 especially the locking lugs is difficult without an AR15 brush designed for that type of chamber.  There are times you will need to literally scrape the locking lugs of an AR15 and Otis has the tools and gun cleaning kit for your needs.