Nikon Buckmaster 3-9x40 Riflescope (Matte, BDC) Durable, versatile riflescope is the result of collaboration between Nikon and Buckmasters Brightvue anti-reflective system of multicoated lenses provides over 92 percent anti-reflection capability BDC reticle trajectory-compensating system is designed and calibrated to provide fast, simple aiming points for various shot distances 100 percent water and fog-proof housing, O-ring sealing and nitrogen filling ensure moisture never penetrates interior Includes limited lifetime manufacturer's warranty