Copper Eliminator bore brushes have aluminum components and do not react with ammonia-based solvents, preventing false copper fouling readings.
The brushes are designed with nylon bristles and an aluminum core, ensuring they are gentle on the bore and do not damage the muzzle.
Available for various calibers, the brushes come with thread patterns suitable for different rods, specifically 5-40 for .17 and .20 calibers, and 8-32 for .22 caliber and larger.