The Hammerson Combat Team announced that their "The Fin" Tactical Rail for the KSC MP7 will be available in a few weeks according to Public Enemy. This rail system is made for those who have no use for the folding foregrip of the MP7 allowing more weapons accessories and your own prefered foregrip (a TD one would be good) to be installed.

Pricing not available yet. Here's a close-up photo.