Birchwood Casey Muzzle Magic Cleaner prevents rust and loss of accuracy from blackpowder fouling by cleaning your muzzleloader with No. 77 the traditional, water-soluble cleaner. Safe for use with natural lubricants. Effectively dissolves powder residue and loosens any metal traces for easy removal. After cleaning your muzzleloader, apply Barricade® Rust Protection to all metal parts to protect from rust. Flip-top for no-spill cleaning. 16 fl oz