This kit from Iosso was designed to clean the gas tube without complete disassembly of the AR rifle. It contains: 2 gas tube brushes, 1 clear guide tube After removing the bolt and the upper receiver, the gas tube port will be exposed. This patented technology allows the gas tube to be cleaned easily and to save time without removing it. To clean: Insert the clear guide tube over the end of the gas tube. Apply a little Iosso Triple Action Oil to the gas tube brush. Hold the gas tube brush close to the bristles and slowly feed it through the clear guide tube using short strokes until it reaches the length of the gas tube. Repeat this step if necessary. The combination of the gas tube brush and Triple Action Oil will remove built up carbon. Proudly Made in the USA. Suggested Retail $11.95.
