Breakthrough Clean Nylon Bristle Bore Brush .30 Cal/.308/7.62mm Brass Core #8-32 Thread

The Breakthrough Clean BT30NBB Nylon Bristle Bore Brush is a purpose-built firearm cleaning tool designed to scrub heavy carbon and fouling from .30 caliber / .308 / 7.62mm bores. Part of Breakthrough Clean's Bore Brush series, it pairs a rugged brass core with stiff nylon bristles that scour the bore without the aggressive metal-to-metal wear of a traditional steel brush.

The brush threads onto any standard cleaning rod fitted with the universal #8-32 thread pattern, making it a drop-in addition to virtually any rifle or handgun cleaning kit. The brass core supplies the rigidity needed to drive the bristles down the full length of the bore, while the stiff nylon filaments attack stubborn residue with repeated solvent-soaked passes. Sized specifically for the .30 / .308 / 7.62mm family of cartridges, it is sold individually as a replaceable cleaning consumable and is ready to pair with a compatible rod, patches, and cleaning solvent.