I know how my ar-15 works, I can see how all the parts go together and what happens when the trigger is pulled, I also know how my ak's, sks, mosins, mausers, m1 carbines etc. I see how they all work, but the 1919 still has me baffled as to how it works in a semi configuration, what keeps it from running away as a full auto, what resets the trigger and sear to stop it, why is there no hammer, what trips the firing pin basically how does it work, I have been studying here for a few months and have taken my 1919 apart numerous times and tried to imagine it functiong, I see how some of it works, but the firing pin and sear baffle me, and then we come to these



