One-piece, precision machined Weaver rail lets you mount a variety of optics on your Benelli shotgun. Two cross-slots provide optimal ring spacing on a wide range of scopes, including advanced red dot optics. Low profile allows use of front sight, however optics may have to be removed. Lightweight aluminum is hardcoat anodized for durability. Attaches to factory drilled and tapped receivers using the included steel mounting screws. Mfg: Weaver SPECS: Aluminum, anodized, matte black. Steel mounting screws. 47/16" (15.8cm) long. Fits Benelli Super Black Eagle, Super Black Eagle II, M1/M2 Field Guns, and Super Nova. Accepts Weaver-style rings.