This kit is engineered to clean the gas tube of an AR rifle without requiring complete disassembly. It includes two gas tube brushes and a clear guide tube. This patented technology facilitates easy cleaning of the gas tube, thereby saving time by eliminating the need for removal. To use, simply place the clear guide tube over the end of the gas tube. Apply a small amount of Iosso triple action oil to the brush and insert it through the gas tube. The combination of the gas tube brush and triple action oil effectively removes accumulated carbon. Maintaining a clean gas tube ensures proper bolt cycling and helps prevent carbon build-up from entering the chamber. Comprehensive instructions are included in the package. U.S. Patent #8,458,947 B2. Manufactured in the USA. Complies with the Berry Amendment.