Hey, I've been shooting my (new) AR at the Cherry Creek Range a few times and it's good. You do have to have a parks pass or pay to get in since it's inside Cherry Creek State Park. The (new) owners are great and seem to have things well organized and have lots of plans for the place. You can buy a "flight" card to get a bit of a discount (essentally a punch card for sessions). I think you get 9 for price of 8 or something like that. They are currently operating out of a trailer, but are working on getting an actually office building set up. They have about 8 100 yrd and 5 50 yrd rifle lanes and about 10 (fixed distance) pistol lanes (they say they're working on getting rails/cables put in for the pistol lanes).
Yeah, it cost to shoot there, but da*n it's convenient! (like 5 mins from my house)
KAC