Cleaning jags are equipped with machined aluminum components that do not react with ammonia-based solvents, unlike brass parts, which can sometimes cause reactions. This ensures that blue-green stains do not appear on your patches, preventing any misinterpretation as "false positive" indications of copper fouling. Consequently, you can accurately determine when your bore is truly free of copper.

• Precision-engineered .20 Cal aluminum jag with male threading for optimal bore cleaning efficiency
• All-aluminum construction with a pointed tip
• 5-40 male thread specifications
• Compatible with J. Dewey .20 Cal cleaning rods and any cleaning rods featuring 5-40 female threads