Radian AR-15 Takedown and Pivot Pin Set. Precision CNC machined from steel with a black nitride finish and engraved Radian logo on the ends. The pins feature dimpled ends for use with a cartridge tip or punch. The forward pivot pin includes fingernail groove around the circumference of the head for easier removal. Includes detents and springs. Compatible with standard Mil-Spec AR-15 receivers. Made in the USA.