Not much is known about the new Gear Sector Handguards/Rails, but I do know they have been working on them for awhile. Gear Sector released a sneak preview of them on their Facebook page earlier last week. It appears to have a proprietary barrel nut, and anti-rotational tabs. Torx screws appear to secure the rail to the nut. Standard Picatinny Rails are along the top, but slotted openings are on the rest of the octagonal shaped rail. If you look closely at the picture, the rails appear to be marked as 7" and 9" versions respectively.

Hopefully Jason Trusty will give us a little more information if he sees this post. If it's like everything else that Gear Sector produces, I'm sure it'll be of the highest quality and function. Can't wait to see more.