I carried a stainless steel Interarms Walther PPK in 380 for years never had any problems with it except for aluminum cased Blaser ammo, very accurate, but a very heavy double action trigger pull, sights are too small and a little too heavy for pocket carry. I wished for years that someone would manufacture a pistol in 9mm that was as small and hopefully lighter than the PPK.
I bought a Seecamp in 32 auto, could only use Winchester Silvertips but only had a channel in the top of the slide for sights and I hate guns without sights so I sold it.
I bought a Glock 27 in 40 caliber, and a Glock 36 in 45ACP, both great little guns, light and very reliable and accurate but too big for pocket carry.
I bought a Smith and Wesson 638 Bodyguard in 38 Special and a Ruger SP101 in 38/357 Magnum, both revolvers very accurate and reliable, the Ruger was too big and heavy for pocket carry, the Smith was perfect.
Still I wanted a semi auto for pocket carry so I bought a Kahr PM40 all black with night sights $700+. By the way I own over 20 handguns and in my lifetime have owned or shot probably 50 to 100 and never had any serious problems with any of them. Took the Kahr PM40 to the range, almost every other round failure to return to battery, failure to feed, failure to eject, and after about 500 rounds the magazines started falling apart, plastic followers broke and the back of the metal magazines started tearing out. Sent the gun back to Kahr it comes back, put another 300 or so rounds through it same problems. Sent the gun back to Kahr a second time and it comes back, shoot another 300 or so rounds through it and same problems. Sent the gun back to Kahr for a third time and it comes back shoot 400 or so rounds through it and same problems. That's 1500 rounds of 40 caliber through the gun and it still does not work so much for Kahr's 250 round break in, what a joke. I still have the gun as I could not sell it in good conscience to anyone for self defense, almost totally unreliable. Get on the internet you will find all kinds of similar horror stories along with guys who must have got a good one that are having no problems. By the way Kahr sent me some new magazines, one mag held one round less than the others, so I tore it apart, they had installed two magazine followers one on top of the other.
In my opinion Kahr has such a spotty reputation that I consider them to be junk, I would not recommend them in good conscience to anyone for self defense.