Get ready to experience a revolutionary clean! This breakthrough clean nylon bore brush is engineered to dominate heavy fouling in your 9mm, .357 Mag, or .38 Cal pistol. Its rugged brass core and tough nylon bristles deliver an unmatched scrubbing power, ensuring your barrel shines. This essential nylon bore brush features a standard 8/32 thread, making it a perfect fit for your cleaning kit. Achieve that pristine breakthrough clean nylon performance you've been searching for.