The Rusteprufe Chamois Range Bag provides a compact solution for protecting firearms and metal gear from rust and corrosion in the field. It includes a reusable chamois cloth pre-treated with a solvent and rust-preventive oil formula that leaves a thin protective coating on metal surfaces. The cloth is stored in a resealable mylar zip-top bag that keeps it clean and ready for use during travel or range trips. When the cloth begins to dry, it can be recharged with additional oil to extend its service life.