The KAK K-SPEC Enhanced AR Bolt features an advanced dual ejector system designed for improved reliability and consistent ejection patterns in 5.56/.300 BLK applications.KAK K-SPEC Enhanced AR Bolt - Complete Assembled UnitDual ejector system with Mil-Spec ejectors and springs9310 steel construction for durabilityPhosphate finish for corrosion resistanceCentered ejector holes on lugs maintain bolt strengthBackwards compatible with all standard Mil-Spec BCG componentsCompatible with any AR-15 style direct impingement systemEngineered for enhanced ejection reliability without requiring proprietary parts this bolt provides consistent performance for competitive shooting tactical applications and general use in AR-15 platforms.