I bought mine second had from a Griso owner (oddly enough, the original owner of the Russell Day Long seat I bought for the Griso) so I'm not sure which model.
Laminar lip makes a universal model (several widths):
http://www.laminarlip.com/cruisers.php
(cool beans, they make ears to help cover the hands too! Didn't know that!)
Mine "appears" to match the CU model;
http://www.twistedthrottle.com/mra-custo...torcycles#
It's a bit bigger than the NC screen offering more protection. I really wish I had had it on the Moto Guzzi Rally trip as the little Give A770, while it looks very cool on the Griso, does not give the shoulders a break from the wind. At least I have hand protection on the Griso, the CB is still open to the wind so I'm looking for solutions there with the cold weather approaching.
Cold for AZ anyway.