Professional nylon rifle bore brushes designed specifically for .22 caliber firearms with 8-32 male threading. This 12-pack provides excellent value for regular firearm maintenance and cleaning.Nylon Rifle Bore Brush - 12 Pack.22 caliber bore diameter8-32M male thread compatibilityDurable nylon bristles for effective cleaningSafe for rifling and barrel surfacesEssential for maintaining accuracy and performance of .22 caliber rifles these nylon brushes effectively remove fouling and debris without damaging the barrel's rifling or finish.