This mount is for the lite 3615 that has a bolt on back plate and outer holes fit the 56" AJ Laser, weight is .5 oz or about 14.5 grams.

If you have the light fiberglass version now this new mount comes with longer screws as it is thicker and the screws for the fiberglass mount will not be long enough and you could end up stripping the threads if you try to use them.