Photo 1: Ease the sear into the cage from below, making sure the long leg of the spring ends up on top of the cage as shown. The short leg of the spring should also face up, pinned against the center part of the sear. Photo 2: Move the long spring leg into this notch to take the stress off of it, and push the sear up and forward into place. Everything should now be arranged for you to slide the sear pin in from the side... push it in or gently tap it into place. Not much force will be