I've found a couple of deals online at a place called NGOA Buyers Club. Seems that you pay a yearly due to be 'in the club' (sounds Sportsman's Guide-ish), and the deals on firearms are pretty solid it seems.
I placed an order with them, then read all the reviews and canceled the membership the next day or so. But they had already shipped the gun (fast) and it arrived with no issues and was a pretty good deal. Unless you are buying regularly though I don't know that it is worthwhile. They have a lot of bad reviews from when they were selling something else (flashlights maybe) and are not necessarily current with their gun sales. They did cancel right away without any hassle. I wouldn't recommend them though.