Professional-grade nylon rifle bore brushes designed specifically for .50 caliber firearms with 8-32 male threading. This 12-pack provides excellent value for regular firearm maintenance.Nylon Rifle Bore Brush - .50 Caliber8-32 male thread specification for secure attachment12-pack quantity for extended useDurable nylon bristles won't scratch barrel riflingProfessional cleaning rod compatibilityEssential for maintaining accuracy and firearm longevity these nylon brushes effectively remove fouling while protecting your barrel's precision rifling from damage.