The Beard/Duck Buster has been engineered and manufactured as the perfect solution for Water Fowl Hunters and Wing Shooters alike. The low profile mounting system and small diameter optical locating devices make it ideal for all weather hunting conditions. This product is made of 100% T-6 aircraft-grade aluminum and will outlast other brands made with fragile plastic components. DR Outdoors Group's precision components have been field tested and will outlast similar products 500 to 1-guaranteed! Product Features Include: Superior Brightness INDESTRUCTIBLE T-6 Aircraft-Grade Aluminum Base Windage and Elevation Adjustment TROUBLE-FREE Mounting NO MAINTENANCE Construction Low Profile