According to all of our holster requests are hands down Kahr firearms. I don’t have a ton of experience with these firearms, but I will say that they are the smallest 9mm handgun that I would ever consider carrying. I find them to be a little too harsh to shoot for that size, but depending on the on the circumstances I would not feel under gunned with one of these. I actually first found out about the Kahr firearms from a retired Law Enforcement Official that work in the NYPD for 3 years. He was the first person I ever met that actually carried two firearms, and one was a Kahr PM9.
The .380 is a buzz, but every time I look at the ballistics of the firearm, I just cringe. If I’m going to carry a gun, the 38 Special is the smallest caliber I will carry, but the Kahr PM9 and some spare Kahr Magazines fill my pockets. I have several friends that pocket carry these firearms and 6 or 7 rounds of 9mm and a spare magazine is not minimal. Maintenance on the firearms is not different than any other, it is always wise to keep up with your recoil spring replacement and magazine rotation.