The Black Rose is a special edition that has some cosmetic engraving and a black chrome finish.
Mine is just listed as the blackened slide/night sights.
http://www.kahr.com/Pistols/Kahr-PM9-Black-w-Night-Sights.asp
Now to put this to bed. The PM9/CM9 are the same basic pistol with a very few "cosmetic" changes and a extra magazine, and in my case a set of very nice night sights.
Frankly it comes down to money you are willing to spend. Shooting wise, I can't imagine any difference at all between the two.
Mine is just listed as the blackened slide/night sights.
http://www.kahr.com/Pistols/Kahr-PM9-Black-w-Night-Sights.asp
Now to put this to bed. The PM9/CM9 are the same basic pistol with a very few "cosmetic" changes and a extra magazine, and in my case a set of very nice night sights.
Frankly it comes down to money you are willing to spend. Shooting wise, I can't imagine any difference at all between the two.