5.56 or 223 Chamber & Bore Cleaning Brushes and Mops 8-32 thread Ships free
1 5.56 or 223 chamber brush with bronze bristles and steel lug bristles. 1 5.56 or 223 chamber cleaning mop. 1 5.56 or 223 cotton bore cleaning mop with steel core. 1 5.56 or. 223 bore brush with a steel core and bronze bristles.