Aero Precision AR-15 Standard Lower Parts Kit

The Aero PrecisionA(R) AR-15 Standard Lower Parts Kit is compatible with Mil-Spec lower receivers. This kit includes 1 takedown/pivot spring, 1 takedown/pivot detent, 1 trigger/hammer pin, 1 takedown pin, 1 pivot pin, 1 bolt catch, 1 bolt catch spring, 1 bolt catch buffer, 1 bolt catch roll pin, 1 safety selector spring, 1 safety selector detent, (1) 4-40 set screw (for threaded takedown pin detent hole), 1 buffer retainer, 1 buffer retainer spring, 1 trigger guard, 1 trigger guard roll pin, 1 A2 pistol grip, 1 pistol grip screw, 1 pistol grip lock washer, 1 trigger spring, 1 hammer spring, 1 disconnector spring, 1 magazine catch body, 1 magazine catch spring, 1 magazine catch button, 1 hammer, 1 trigger, and 1 disconnector. Made in USA.