Harder Than Rust But Softer Than Bluing. This Lot Is For Ten (10) Frontier Big 45 Rust Removers. Frontier Big 45. “Will Not Harm The Finest Blued Surfaces”. It will clean down to the original surface on blued guns, and other arms & armor.

Harder Than Rust But Softer Than Bluing. This Lot Is For One (1) Frontier Big 45 Rust Remover. Frontier Big 45. “Will Not Harm The Finest Blued Surfaces”. It will clean down to the original surface on blued guns, and other arms & armor.