I have been using red dots for turkey hunting for about 12 years and would not go back to open sights. Started out with the 30mm, Bushnel makes a good one, however I did not like the bulk and awkwardness of it. Last 3 years I have been using a tru-glo tru-point open red dot, only weighs two ounces and works good. Both of these require drilling and taping or a saddle mount. I'm using a M2 with a saddle mount at present, however I went to Burris's web sight and clicked on ,New for 08, they have their new Fast Fire open red dot sight mounted on the shim that goes between the stock and reciever, they have models for all the Benellis, pretty clever. Midway USA expects them in Feb. 29, I will have one on my M2 before I go to Fla.