I just moved from Vegas to Illinois but I still have a place back in Nevada to keep my residency. One of the best FFLs I have dealt with is Greg Rentchler of Southwest Tactical. He's in Henderson so it's a bit far if you're in Summerlin but I believe the drive is more than worth it. I ordered my stripped lower through him but the first company we used had it backordered. Rather than just canceling the order and forgetting about it, he placed the order directly with the manufacturer, put it on his own credit card (I paid him back of course) and I had the receiver in my hand within a week. Very professional, very courteous, and unlike other FFLs, this is a side job for him that he does because he likes it, not because he has to. I highly recommend you give him a call if you ever want to buy a firearm again in Las Vegas:
(702) 719-GUNS (4867)
Bill's Buy and Sell is alright too. I just don't really like the neighborhood. His store seems like an oasis in the middle of not-too-friendly surroundings.