Actually it's more of a http://www.sigsauer.com/Products/ShowCatalogProductDetails.aspx?categoryid=35&productid=271 Practically identical.
Yeah, its got the sporterized rather than a military stock, but for some reason they have put an AR style collapsible stock on it.
Funny that, as the sig doesnt have the same issues with the return spring and buffer tube that the M-16s/M4s have.
Cant think why you would want to settle for that when you can have a proper folding one.
Maybe the kids get used to seeing the M4 style in MW, and think it looks cool?