Brownells 10 Gauge 5/16-27 Male Heavy Weight Bore Brush, Pack of 3

The highly aggressive nylon brush efficiently removes stubborn bore deposits. Its extra-stiff, large-diameter bristles are safe for use on rifling and smoothbore surfaces. The brush is resistant to deterioration when used with any preferred solvent. The robust, one-piece, looped and wound brass shank and coupling are designed to prevent scratching. High-density nylon bristles Brass, looped and wound shank Male threads with a 5/16-27 unified national special (UNS) specification