Buy Mossberg Shotguns online. Browse all new and used Mossberg Shotguns - Pump for sale and buy with confidence from Mossbergunshop.com. Buy a Mossberg shotgun online for delivery to your local FFL dealer with no extra transfer fees. Buy Mossberg Shotguns for sale online, find a semi-auto, bolt action, or pump action Mossberg Shotgun ideal for hunting, sport shooting, or home defense. From hunting and home defense to recreation and competition, there are shotguns for any purpose. Some of Mossberg's top sellers include the 500, 590, and 930. Rugged, reliable, and versatile, the Mossberg 500 shotgun has seen more than 10 million sales over the last 50 years. This pump-action shotgun is available in numerous variants, including multiple tactical models and a combo that boasts interchangeable barrels. Various models offer a wood or synthetic stock and forend. The Mossberg 500 shotgun is also available in a smaller sized, 20-gauge youth model.