Otis' Bore Brushes have a proprietary Tufcor core wire that is corrosive-resistant and has a tighter twist for better bristle retention with twice the fill of other brushes with bristles right to the end. Each 2 pack contains a caliber-specific brush that is color-coded and has the size indicated on the stem. It also contains one bronze and one nylon bore brush.
This model is for .50 cal firearms.
Determined at checkout.