HD Series cases are airline-approved and made to protect your valuable firearms with durability you can depend on. Whether you travel with your firearms to Colorado for elk hunting or around the world for exotic animals, this is the case for you. Constructed of solid 0.063 grade aluminum alloy, HD cases are built for hardcore travel. Impact-resistant welded corners keep HD cases performing trip after trip, year after year. A tension spring carrying handle securely rests against the body of the case. HD 52 has a unique metal locking bar for added security. A full length piano-style hinge opens to an interior with two levels of high-density foam to provide a snug fit for your firearms. A rubber lip seals the inside edges. When you need the very best and don't want to take any chances, HD delivers.