Includes: ejector/safety spring, pistol grip screw, pistol grip washer, pistol grip, safety detent detent spring (2), detent (2), takedown pin, pivot pin, buffer detent, buffer detent spring, bolt stop pin, bolt stop, bolt stop plunger, bolt stop spring, mag catch, mag catch button, mag catch spring, safety selector, hammer and trigger pin, hammer, hammer spring, disconnector, disconnector spring, Tactical trigger, trigger spring, trigger guard assembly, trigger guard pin big.