This is a brass .50 caliber bullet bottle opener crafted from a heavy-duty military machine gun cartridge. Take note of the precision-cut slot near the base that serves as a functional bottle opener for popping off caps. These items are sold primarily as collectables, artillery military decor, or unique gifts for veterans and collectors. It's fantastic for display boxes, home or office decor and the military enthusiast in all of us. The casings are generally recycled and empty, meaning they contain no gunpowder or active ammunition components. Dimensions 1" x 5.75"