I recently purchased a new Glock 19 from my local gun dealer. My first Glock. Anyway, he sold me a new 19, a Gen 3. He never offered or presented a Gen 4. I am happy with my purchase, but should I be concerned or perturbed that he did not offer the Gen 4 as an option? Was he trying to clean out his old inventory, or did he estimate all I needed was the Gen 3? Yes, he had both on hand.