Went to a glock dealer in my town to buy my first handgun and I was really set on the 19. Love everything about it. Bought it at about noon today and just made it home to play with it, as I'm reading all of the manuals(that all say gen 4 stuff in them) I notice it doesn't have the gen 4 marking on it like all of the gen 4's do. Price was $559 and out the door came to $598. This is my first gun purchase so I hope I didn't just get taken advantage of. I took a couple pictures of it so if you guys could tell me that would be greatly appreciated.