u/Free-Purple4665

First ever Reddit post because I am new to the 2011 world and am stumped.
I have about 800 rounds through this pistol and field stripped it today to clean and re lube. All was fine until I racked the pistol a few times after reassembly and felt something fall onto my foot, yep, the trigger just fell out. I only have experience with Glock triggers and do not understand how this would happen or what all I have to do to reattach this shoe or if it has broken off. Any insight would be greatly appreciated!