Davidson's Firearms located in Henderson, if I remember correctly it has been awhile, is a very small gun store with a friendly staff. I went there when the shop first opened to pick up a smith and Wesson mp shield in 9mm. At that time these little pistols were hard to come by and every store that did have them on their sales floor were selling them at ridiculous prices. However the guys at Davidson's sold me one for a steal of a price even at today's standards and didn't mark up their prices during the panic days.
My first impression was that the shop was very small. The inventory was barely enough to keep the shelves full and they did not have as many guns as some of the more veteran stores in Vegas. However the prices were more than reasonably and the staff were very knowledgeable and able to answer all of my questions. I haven't been back to purchase a firearm since then because is Henderson is just so far from Summerlin, but I would definitely recommend this store to others.
Tip: Check Backpage.com Davidson's Firearms often advertise their instore deals at very reasonable prices.