A further straightforward way to inform a gen 2 from a gen 3 Glock would be the double pin set up earlier mentioned the induce. Gen 2s only have an individual pin whereas gen 3s have the extra pin for your locking block to give it more assist. I’d say https://glock-17m-9mm-pistol18395.blog5star.com/21320808/glock-19-rtf-ns-an-overview