Yeah, I am 99.99% sure that the 6.6 pounds (3kg) is just a copy and paste from the standard. Has to be a bit heavier but QLD Gun Exchange even told me on the phone 3kg. I don't think they truly know.
Just watched the review from Ozziereviews. He says 3.6kg, ugh. That again sounds higher than I expected but then again could be about right.
Yeah I do like the look of them and looks are important hehe. The regular thin barrel on the standard scout just looks a bit awkward.
They seem kind of practical for swapping different optics configurations around for example red dot in scout position or standard scope position plus light/illuminator mounted in the scout rail position. Plus of course the compact design.