The Huntsman and Sidekick differ I believe in the model of the receiver. The Huntsman is able to be fitted with different barrels like a shotgun and some centerfire barrels. You send the rifle back to the factory and they fit them (as I understand it). The Sidekick is not and therefore does not fall under the centerfire sales and shipping regulations. Also the Sidekick I believe has a 2" shorter barrel. Other then that they are the same rifle.

The out of the box accuracy of these rifles as I had read is most impressive.