Far from a new design, Air Force pilots have used the earliest versions of Henry’s AR-7 survival rifle since the early 1950s, and with good reason. Like its predecessors, the Henry AR-7 Survival Rifle can perform one of the coolest tricks of all the guns on this list. You can disassemble and store this takedown gun inside a watertight stock that displaces enough water to actually float! It doesn’t ride high in the water, but it doesn’t sink, even with ammunition stored inside. Built to hold up in wet conditions, the hollow stock is made of ABS plastic and many of the steel parts are Teflon coated to inhibit rust and corrosion. The Henry AR-7 weighs only 3 ½ pounds and comes in black, True Timber Kanati Camo, and a True Timber Viper Western Camo pattern. It also comes with two eight-round magazines, which also fit into the stock. In less than one minute, you can either assemble or disassemble the entire rifle, with no tools required. In fact, if you needed, you can field strip the entire piece for cleaning in the field, using nothing but your bare hands.