Every pin and spring needed to rebuild or complete a 1911 frame. Includes mainspring cap, mainspring housing pin retainer, hammer strut pin, hammer pin, sear pin, mainspring cap pin, magazine release lock, safety lock plunger assembly, barrel link pin, ejector pin, mainspring housing pin, mainspring, magazine release spring. Drop-in with little or no fitting required. Kit Includes: MainspringMainspring CapMainspring Housing Pin RetainerMainspring Housing PinMainspring Cap PinHammer Strut PinLink PinEjector PinHammer PinSear PinMagazine Catch SpringMagazine Catch Lock (slotted)Plunger SpringSlide Stop PlungerSafety lock plunger