Tetra 12g Brass Core Nylon Brushes

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 fit

• Will not harm or scratch steel

• Durable and reusable