Categories Uncategorized Uncategorized Milt Sparks and El Paso Saddlery Post author By daveguns Post date June 6, 2015 55 BN and a Street Combat ← Tom Threepersons Made by El Paso Saddlery → MIM parts. In this photo a broken pin is observed on the hand of a Smith & Wesson 500 Magnum Revolver. The cylinder would not turn when the trigger was pulled or when the hammer was cocked. If your life ever depends on a MIM part count yourself dead.