Birchwood Casey Perma Blue Liquid Gun Blue

Birchwood Casey Perma Blue Liquid Gun Blue is a specialized chemical solution used for touching up or completely re-bluing steel surfaces, primarily on firearms. This product is a staple in the hunting and shooting sports industry, known for providing a consistent, non-streaky blue-black finish to steel (excluding stainless steel).

Originally founded in 1948, Birchwood Casey began as a small company focused on wood and metal finishes for sportsmen. Over the decades, it grew into a dominant brand within the firearm maintenance sector. In 2020, the brand was acquired by GSM Outdoors, an umbrella company that manages a massive portfolio of specialized outdoor and hunting brands. Today, while ownership has transitioned to GSM Outdoors, the products continue to be manufactured primarily in the United States to maintain quality standards for enthusiasts and gunsmiths.