Not a traditional gun shop, but a great place to transfer firearms - they charge only $15 to transfer firearms and they are located on Main Street in Fort Wayne.
They are not a gun shop so don't plan on window shopping for shiny stuff that goes bang. My guess is if you wanted to do a transfer you probably need to discuss in advance.
Earth Adventures is a good outdoor shop with quality items in stock and can order about anything you might buy at an online retailer at similar prices to REI, Campmor. Hiking, camping, kayak/canoe, clothing...