Pro-Shots Copper Solvent IV is a Superior Next Generation Formula that is made specifically for Copper and Powder fouling. It cleans while providing superior rust protection. This superior formula is used by competitive shooters, federal law enforcement, and accuracy minded shooters across the globe. With many rifle & pistol shooting championships to its credit, find out why Pro-Shots Copper Solvent IV is a superior cleaner for your bore.Features : Synthetic Cleaner (Non-Ammonia) Next Generation Formula Light Scent- Non-Offensive Odor Uses Positive Charged Ions With Activated Additives Rust and Corrosion Protection Environmentally Safe Formula - No Harsh Or Toxic Chemical Made In Usa