The Kahr is a high tolerance gun. Meaning it is milled to very close fit. A loose fit helps make a gun more reliable such as the AK-47. I have a CW9 and I had a minor problem with the Slide Lock spring, replaced it and trouble free. Honestly, I would pick the Glock 36 over the P-45. Unless you can afford a Rohrbaugh, nothing is in the class of the PM9.