KleenBore nylon bristle bore brushes combine heavy-duty, stiff red nylon bristles with meticulous craftsmanship to create an exceptional tool for firearm cleaning. These brushes are a trusted choice by firearm manufacturers worldwide, thanks to their ability to remove even the most stubborn fouling and debris. The dense and thick bristle arrangement ensures efficient cleaning with minimal effort, providing a precise and thorough clean for your firearm's bore. Whether you're tackling lead fouling, carbon buildup, or other challenging residues, KleenBore brushes make the cleaning process quicker and more effective, keeping your firearm in optimal condition for the long haul. Durable bristles Threads conforming to the American Standard #8-32 specification Manufactured in the united states