I don't know why but I'd like to try a CW 45. I was leaning toward a 40 but after reading so many critiques against them verses the reported more comfortable shooting 45, I got to thinking new holster costs and now checking in to which other kahr's will fit the same holster. As small as the cm9 is it's holster so very close to fitting the K9 also. If it weren't for the slight increase in the K9 from the top of barrel to the bottom of the trigger guard it would pretty much fit the much smaller cm9 holster. I had considered if the barrel was longer it bother me if it stuck thru. I've been reading about the Cw 45 and wonder if I might get more info here?