Know what you want and reserch it. Know the local prices of the gun you want. These guys at the gun shows are all about money and could care less about the features of the gun. Go to all the big vendors tables and price your gun. Keep asking is that the best you can do. Bug them and keep coming back and telling him you can get it over at the other vendor for $50 cheaper. The last day of the show about 2hrs before closing is the best time. Your only going to get it so low and when you reach that point grab it. This is for new guns only. Small vendors or private partys is a different ball game.