A great accessory for the Beretta would be the Truglo Tru-Point. I really like this design as it combines the red dot laser in a flashlight housing, making for a compact design. It is easy to mount and features a quick detach lever. The white combat light peaks at 200 lumens, and the 520 mm laser is bright and visible. (A green laser is an option.) I especially like the option of running each separately or the light and laser at the same time.