Inexpensive* sorry. I actually want the 500. My cousin bought his new for 400 bucks total. I figured if I only have 300 bucks I can possibly buy a used one. I'm new to shotguns so I'm not sure. I called dicks sporting goods and their prices were also about 400-450 for a new one.
Actually you just go to the local FFL dealer, and point out the one you saw on line, he does all the work. You pay him a percentage to order the gun. When it comes in, you pay the rest, and his 20 dollar fee and 7 dollar background check. FFL dealers do it for a living, so its easy for them. They give you a receipt, so everything is just like a store but without the fancy neon lights etc.
Be careful with this. Most dealers buy exclusively from certain stores. Sometimes it worth the $25 ffl fee if you buy from a reputable store. All it takes is a fax from your ffl. Try grabagun.com. Or armslist.com for used and new guns.