Hello, all. I am new to Glock Talk. I picked up a Glock 22 the other day. I can't find any websight that is able to tell me how old it is. Its a gen two, it still has .40 SW, it has the short ejector works fine, however it has three pins, instead of the 2 pins like my gen 2 17, and 19. My 23 is a gen 3.