Copper Eliminator bore brushes are designed with machined aluminum components to prevent false copper fouling indications when using ammonia-based solvents.
The brushes feature nylon bristles and an aluminum core that are gentle on the bore and will not scratch the rifling or damage the muzzle.
Available in .17 caliber with 5-40 threads and larger sizes with 8-32 threads, these brushes are compatible with both small-caliber rods and Dewey Copper Eliminator rods.