Product FeaturesGUN CLEANING BRUSH: This tool features a durable brass core & stiff nylon bristles to attack heavy residual carbon build-up in your firearm. Our brush fits .308 Cal / 7.62mm MSR chambers & is a must-have accessory to add to your firearm kit.NYLON BRUSHES FOR CLEANING: Our chamber brush has firm bristles, so they don't flatten or fall out over time. They will not scratch or mar the bore, are made with a rigid core for strength, & are machined for the perfect fit.GUN CLEANING SUPPLIES: Maintain your firearms for precise & accurate shooting. Our nylon brush has a #8/32 thread for our stainless steel rod attachments. It's a practical gift idea for fellow gun owners who need functional daily cleaning.GUN CLEANING TOOL: Pack our high-quality gun 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 superior gun maintenance.MADE IN THE USA.