CCF(Capitol City Firearms) which may be out of business, made a few B&T cans. I have one of them, and I'm happy with it. Check on gunbroker, etc to find one.
That's the Impuls II. There is a dealer here in Vegas that stocks them. At least he had one in the display the last time I was in. That is what I am running on my Tactical and I have been really happy with it.