The Bushnell R3 3-9x50 rifle scope features a DOA Quick Ballistic reticle system for accurate long-range shooting with 3-9x variable magnification and a 50mm objective lens for excellent light transmission.Bushnell R3 3-9x50 Rifle ScopeDOA Quick Ballistic reticle for precise holdover points3-9x variable magnification for versatile range use50mm objective lens for superior light gathering1-inch tube diameter with black matte finish16.9 ounces lightweight construction34-11 feet field of view at 100 yardsIdeal for hunting and target shooting applications where quick target acquisition and ballistic compensation are essential for accurate shot placement at various distances.