I have the 9mm 'original' that many police departments are using. You do have a sight hole to see if a round is chambered, which is something. The cop who taught me gun safety told me to keep this weapon loaded but unchambered. In other words, when you put in a magazine the gun will not fire unless you chamber a round manually. That's my safety. I recommend getting one now, because it is a great gun just as it is.
Sorry, off topic, but I just had to say that I like mine very much. Have had no issues with at all, no way, to time.