I just purchased a Benelli Supernova and a TacStar +2 extension tube. I'd like to get a clamp that integrates the small rail for a light. I see the CDM BMT look good, but it can't be found in stock anywhere. I see the Mesa Tactical clamp looks the same, but I cannot find out if it fits the Supernova.

Can anyone please advise on the about or recommend another product? Thanks!