Kahr and Laser Sights

I just got my new LG-412 Crimson Trace laser sight for my Ruger LC9 - Awesome! I know that word is overused but nothing else seems to fit. Great CCW weapon without the sight; greatER weapon with them. Next up is my tried and true Kahr K40. Anyone have any experience with laser sights for this old friend?

They should all be good. And I am looking at buying a k40 myself. I have had crimson trace laser for my G27 it had the pressure switch on it. But I think I wanna try lasermax guide rod laser