Editor's Note Usually coming in at under $400, the Mossberg 500 Field/Security pump-action shotgun is one of the most versatile guns you can buy for the money. This gun comes with two barrels, a 28-inch field barrel with interchangeable choke tubes and an 18.5-inch security barrel with a fixed choke. Having both barrels allows you to have a do-all gun that can cover anything from hunting to sporting to home defense. Mossberg makes the barrel change process simple and easy, with a single screw making the barrel swap a 60-second affair that takes no tools. The ambidextrous tang safety makes this gun intuitive for most users, but the rest of the gun is pretty standard fare when it comes to ergonomics. The Mossberg 500 has been the gold standard for basic shotguns since the 60s, and it has the aftermarket to prove that. If you need a shotgun to cover all the bases, this is it.