Glocks are mechanical devices just like any other handgun. As such, they are subject to failure just like any other mechanical device or machine. Just as any other machine, they should be routinely inspected, cleaned and properly lubricated. Any defective or broken parts should be replaced. It isn't hard. Do that, and a Glock will run just about forever - just like any other quality handgun. Fail to do it and, sooner or later, the Glock won't work anymore - just like any other handgun. In this particlar case, replace the pins and move on. No big deal.