Nylon will not harm your barrel. Tightly wound precision brass core brushes effectively remove fouling from gun barrels.
Industry standard 8-32 male thread (5-40 for .17 Cal. & .204 Cal.)5/16-27 male thread (12,20,28 & 410 Gauge)Close tolerance specifications for perfect bore fitWill not harm or scratch steelDurable and reusable |
