For anyone desiring to construct a mil-spec forged lower receiver, the Wilson Combat Small Parts Kit for AR-15 is an ideal selection. This essential kit contains all the parts you need in one convenient package, allowing you to complete your build with confidence and ease. The kit includes a trigger pin, hammer pin, safety selector detent, selector spring, trigger guard pin, takedown pin detent, and spring, as well as a pistol grip screw and washer. Every part is precision-manufactured to strict standards for superior performance and reliability in the range or in the field. With this kit, you can be sure that your build will stand up to any situation you throw at it. Parts Included: Bolt catch Bolt catch plunger Bolt catch roll pin Bolt catch spring Magazine catch Magazine catch spring Magazine catch button Pivot Pin Takedown pin 2x Pivot/Takedown detents 2x Pivot/Takedown detent springs Safety detent Safety detent spring Semi-auto safety selector (Right Hand) Trigger guard (Aluminum GI) Trigger guard roll pin 2x Trigger/Hammer pin Buffer Retainer Buffer Retainer Spring