This cleaning kit contains 6 precision fit brushes needed for complete AR-308 cleaning.
Thread: 8-32 male
The brushes clean the Upper Receiver, Chamber, Bolt Carrier, .308 Bore, Bolt Carrier Key Tube, and the Gas Tube. The Gas tube brush cleans the entire length of the gas tube without disassembly of the upper receiver.
This kit includes all tools, rod, and rope necessary for the cleaning job. Also a bag is included to carry all of the components.