Perfect for any shotgun, rifle or bow, Red Dot riflescopes deliver optimum targeting performance. The BKRD30 is Extra-bright with a wide field-of-view, illuminated 5 M.O.A. Red Dot with 11-position rheostat, built on dovetail fits standard centerfire weaver-style bases. For shotguns up to 3" shells and handguns up to .357 magnum