A firearm, specifically a modern sporting rifle, can undergo a surface treatment resulting in a distinct azure hue. This process, an electrolytic passivation technique, modifies the outermost layer of the aluminum receiver and other components, creating a durable and aesthetically unique finish. The result is a protective and decorative layer chemically bonded to the metal.
This surface treatment enhances corrosion resistance and wear durability, extending the lifespan of the firearm components. The color provides a personalized appearance. Historically, this type of treatment has been utilized in aerospace and other demanding industries to protect aluminum from environmental degradation, and its application to firearms offers similar advantages alongside an individual look.
