Benelli SBE with sure grip

[poult]

I just bought this gun and I find out that the mercury surpressor that I bought from Benelli doesn't fit this new model. They know it , and probably won't ever have one for it, so they said.
Also, I bought the Limb-Saver recoil pad for it, and that doesn't fit either.
Any one out there know where I could find these items from an after market company?

Thanks,
poult