Smith & Wesson AR-15 Complete Lower Parts Kit

AR-15 lower receiver kit includes everything you need to build a complete lower receiver, when added to the stripped lower and stock assembly of your choice. Kit includes: Bolt catch, bolt catch plunger, bolt catch roll pin, bolt catch spring, buffer retainer, buffer retainer spring, disconnecter, disconnecter spring, hammer, hammer pin, hammer spring, magazine catch, magazine catch button, magazine catch spring, pistol grip, pistol grip lock washer, pistol grip screw, pivot pin, pivot pin detent, pivot pin detent spring, selector, selector detent, selector detent spring, takedown pin, takedown pin detent, takedown pin detent spring, trigger, trigger guard, trigger guard roll pin, trigger pin, trigger spring.