About this item The McJ Tools Rifle Bronze Bore Brush Set includes 10 brushes that are perfect for cleaning the 25 Cal gun barrel to ensure it is free of debris, fouling, and other contaminants Bronze Bristles: The bronze bristles on each brush are designed to be strong enough to remove tough residue from the gun barrel without causing any damage to the rifling or other internal components. Durable Construction: Each brush features a steel core that provides long-lasting durability, so you can use these brushes for multiple cleaning sessions without the bristles falling out or the core becoming deformed. 20 to 50 caliber is 8-32 threaded brass coupler. Easy to Use: it easy to maneuver the brush through the barrel, and the brushes are designed to fit snugly in the cleaning rod for secure use. Cost-Effective: With a pack of 10 brushes included, the McJ Tools Pistol Bronze Bore Brush Set offers a cost-effective solution for gun cleaning that can save you money in the long run compared to purchasing individual brushes. › See more product details