Complete and convenient kit has every pin and spring you need when building, or rebuilding, a 1911 Auto pistol. All are made from premium, heat-treated carbon or stainless steels. Oversized hammer and sear pin are ground to maximum diameter on the 1911 print for a close fit in worn, frame-pin holes. Mfg: Practical Shooting Supplies SPECS: Carbon steel, blued. Contains one each: link pin, ejector pin, hammer strut pin, mainspring (m/s) cap, m/s cap pin, m/s housing pin retainer, m/s housing pin, detent plunger assembly, sear pin, hammer pin, mag catch lock, mag catch spring, sear spring, 19 lb. mainspring, xp firing pin spri