The Brownells special line bore brush is a precision-engineered cleaning tool designed specifically for 20 Gauge firearms. This product features a 5/16-27 male thread, ensuring compatibility with a wide range of cleaning rods and accessories. Each brush in the pack of 12 is constructed with high-quality materials to provide durability and effective cleaning performance. The bristles are arranged to optimize contact with the bore surface, facilitating the removal of fouling and residue. This specialized line bore brush is an essential component for maintaining the accuracy and longevity of your firearm.

• Phosphor bronze bristles, known for their superior conductivity and corrosion resistance, are engineered to optimize performance in demanding electrical and mechanical applications
• Male threads with a 5/16-27 unified national special (UNS) specification