On the left side of home page is a blue area and one topic is Value Guns, if clicked it takes you to detail pages for barrels, slides etc. Click barrel or :
http://www.kahr.com/vg_barrel.html
Try this
Note on the cutaway they actually show one of the newer rifled barrels but most of the high end Kahrs are polygon. Anyway not to change the subject but I got my Kahr when they first came out and would HIGHLY recommend them to anyone. This is my bedside companoin and fits my smallish hands better than any other gun that I would bet my life on.
http://www.kahr.com/vg_barrel.html
Try this