Deeply thanks for interesting our company. TDB, Tactical Defense Build-up, has been served rifle scopes to people who pay attention to solid-manufactured and scrupulous designed. At TDB, our mission and commitment to our customers is to always build the best. We proud of serving a consistent good qulity Dot Sight, Rifle scopes, and Bow sight to our customers which are satisfied with the high quality. The company has been in this field over than 10 years providing quality scopes to worldwide customers as North America, Europe, Middle East and Oceania. TDB’s strength is from confident scopes manufactured by our 60-plus employees, among experienced more than dozen years R&D, processing engineers, maintaing equipments such as CNC lathes.