Product FeaturesGUN CLEANING BRUSH: This tool features a rugged brass core & Phosphor Bronze bristles to attack residual carbon build-up in your firearm. Our gun brush fits .308 Caliber / 7.62mm MSR & is a must-have accessory to add to your firearm cleaning kit.PHOSPHOR BRUSHES FOR CLEANING: Maintain & preserve your firearm for precise & accurate shooting. Our brushes will not scratch or mar when cleaning, are made with a tough, durable core for strength, & are machined to fit perfectly.GUN CLEANING SUPPLIES: Our gun cleaning chamber brush has a #8/32 thread for attachments & has strong bristles, so they don't loosen or fall out over time. It's a handy gift idea for fellow gun owners who enjoy daily & deep cleaning.GUN CLEANING TOOL: Pack our high-quality phosphor brush in your range bag, gun cleaning kit, or store it away with your additional brushes, gun accessories, & solvent products. This brush is one of many variations we offer for gun maintenance.MADE IN THE USA