Crafted of CNC-machined bar stock steel, the Battle Arms Development AR-15 Pro Ambidextrous Safety Selector is a professional-grade safety selector, compatible with most ambidextrous Mil-Spec lower receivers. The black phosphate finish protects against rust and premature wear. The ergonomic lever design with aggressive grip texturing offers a reliable purchase for faster manipulations. Swiss CNC-machined center for smooth operation. Includes installation hardware/detents. Made in USA.