jedd,
I didn't bring a copy of the catalogue home with me, so I can't give you exact specs right now. The picture showed a straight gripped stock with checkering on the grip and forearm. They used the same diamond pattern as the other Marlins. It had a short magazine tube with an endcap on the forend rather than a barrel band that the carbines use.
The dealer checked with a couple of distributors that said that they have not been released yet. I suspect that the barrel is 22". I do remember that it was a microgroove barrel. I'll know more tomorrow when I get me a copy of their new catalogue.
Last time I checked Marlin had not updated their website...still showing "whats new for 2004".
Best,
TnNuc