Quote Originally Posted by iego View Post
Thanks, all!
(I'm actually still unsure how if the ends of the springs are supposed to reside in the grooves, why the grooves would be in the middle, and to one edge and not to both edges? Maybe just one end of the spring needs to be in a groove to keep the pins from walking out? Anyway, yes, something I better check.)
The middle groove is for retaining the hammer, which has a tension pin running down its middle. Always install the hammer pin starting with the side that doesn't have a groove on the outside, or you'll have to push through the outside groove first to get it centered before the hammer can grab the middle groove. The outside groove is for one leg of the hammer spring to rest on, retaining the trigger pin, and it doesn't matter which end goes first for the trigger pin, usually.