Replace Worn Parts, Restore Lost Performance Thirty six of the most often needed parts to replace those broken, lost or just worn out. Restore performance and function, keeps rifle operational. Kit contains: (1) firing pin, (1) extractor, (1) disconnector, (1) disconnector spring, (3) firing pin retainer pins, (1) extractor pin, (1) ejector, (1) ejector roll pin, (3) bolt gas rings, (1) rear takedown pin .250", (1) front pivot pin .250", (2) trigger pins, (1) takedown detent, (2) selector detents, (1) gas tube roll pin, (1) triggerguard pin, (1) bolt catch roll pin, (1) forward assist pin, (1) rear base spring pin, (1) extractor spring, (1) front sight spring, (1) forward assist spring, (1) magazine catch spring, (1) buffer retainer spring, (2) detent springs, (1) selector spring, (1) hammer spring, (1) bolt catch spring, (1) ejector spring.