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 catch lock, safety lock plunger assembly, barrel link pin, ejector pin, mainspring housing pin, mainspring, magazine catch spring. Drop-in with little or no fitting required. Kit Includes:MainspringMainspring Housing Pin RetainerMainspring CapMainspring Housing PinMainspring Cap PinHammer PinSear PinHammer Strut PinLink PinEjector PinMag Catch SpringMag Catch Lock (slotted)Plunger SpringSafety Lock PlungerSlide Stop Plunger