How many rounds have you launched through your Gen 4 Glock? Has a Gen4 glock passed 75,000 rounds? 100,000? I know the Glock 17 gen4 at pistol-training.com has surpassed 60,000 rounds. http://pistol-training.com/archives/6459 I only put about 1,500 through my G19 before trading it and I've got only a 100 or so through my G26. Will the Gen4 glock's live up to the legendary durability of their previous generation counterparts? Maybe we can quell the concerns of the Gen4 naysayers in this thread. How are those Gen4's performing?