Wilson Combat Pin Set, Fits 1911, Stainless 315S This set has all the pins necessary to construct" rebuild" or recondition a 1911 style Auto pistol. Manufactured of high grade steel and heat treated to the proper hardness. Includes: Barrel Link Pin" Sear Pin" Ejector Pin" Hammer Pin" Hammer Strut Pin" Mainspring Cap Pin" Mainspring Housing Pin Retainer" Mainspring Housing Cap Pin" Mainspring Housing Pin" Safety Lock Plunger.