Real Avid AVBMSB30 Bore-Max Speed Brush 7.62mm/30 Cal Rifle Firearm 8-32 Thread Nickel Plated Bronze Bristles”

The Bore-Max Speed Brush has twice the bristle density of standard brushes for maximum scrubbing power. Stiff nickel plated phosphorous bronze bristles eliminate chemical breakdown in the bore and extend the life of the brush.