Product Info for Radian Weapons AR15 Takedown Pin Kit:Use this Radian Weapons AR15 Takedown Pin Kit to keep your rifle intact and ready for action. Radian Weapons precision-machined these AR15 Takedown & Pivot Pins from durable steel to hold up in harsh conditions and throughout rough recoil. Each Radian Weapons AR15/M16 Takedown Pin Kit includes springs and detents, and these are compatible with both AR-15 and M-16 receivers. Secure your upper and lower receiver together with these reliable Radian Weapons AR15 Takedown Pins.imageSpecifications for Radian Weapons AR15 Takedown Pin Kit:Manufacturer: Radian WeaponsCondition: NewColor: BlackCountry of Origin: USAFeatures of Radian Weapons AR15 Takedown Pin Kit:Precision CNC machined steel w/ black nitride finish and engraved Radian logoPins feature dimpled end for use with cartridge tip or punch, forward pivot pin includes fingernail groove around circumference of pin head for easier removalDetents and springs includedCompatible with standard AR15/M16 receivers