All of the "Lightweights" I've seen were 1980's or 1990's vintage XTR's and were pushfeed. The ones stamped "Carbine" were the same rifle with 20" barrels.
I think FN is offering a current model with a shorter barrel and CRF. Unless mistaken it is called the Compact. Very similar to the current Featherweight but with a 20" barrel. The stock dimensions MAY be reduced as well but I'm not certain.
