Timber Creek AR Magazine Release Button Black MilSpec AR MRB BL. They look no farther than the Timber Creek Billet Magazine Release Button. Machined from a solid piece of lightweight billet 6061-T6 aluminum available in our 9-standard colors and compatible with all Mil-Spec Lowers Specifications for Timber Creek AR Magazine Release Button: Manufacturer: Timber Creek Gun Make: AR Platform Additional Features: Compatible with all Mil-Spec Lowers Condition: New Gender: Unisex Features of Timber Creek AR Magazine Release Button: CNC Machined out of Aircraft Grade Aluminum Compatible with all variances of the AR platform Package Contents: Timber Creek AR Magazine Release Button Timber Creek AR MRB BL: AR Magazine Release Button Black MilSpec