7 Best Gun Cleaning Kits [2022] Universal & Build Your Own Kits Jul 14, 2022 · Reviews of the Best Complete Gun Cleaning Kits. Universal gun cleaning kits are the most popular type of complete cleaning kit. Here, our top choices for gun cleaning kits are all universal cleaning kits meaning they can be used for handguns, rifles, and shotguns. Our top universal cleaning kits have room for expansion – this is deliberate.