I normally buy the "spring" packs from sportsman's guide or midway or the like when I order something. Good to have laying around for just that reason. Also when installing or taking apart the front pivit pin, an old armorer trick is to do it with a large Ziploc bag over your work area/hands, so when it pops off to the moon it's contained. Also good idea to wear safety glasses. Seen a 1911 mainspring cap and spring take out someone's eye once.