I have had both the MK9 and the PM9 for a while now. Kahr says to allow for a 200 round break in period. I have fired 600-800 rounds through each of the guns with one FTE from the first mag with each of them...AND NO other issues since.
The smooth front and back strap on the MK9 can be a problem if your hands are sweaty but the (some say agressive) stipling on the PM9's grip make it easy to handle. (No blistering or soreness after as many as 200 rounds at a time)
They are both as accurate as you are within 15 yards, which for SD purposes is as much as you can ask for.
I like them both and will carry either every day depending on how I'm carrying that day. - B. B.
I give this pistol high marks. I am a fan of the 1911 45 ACP, and yet am always looking for a light conceal carry weapon in a minimum of 40 cal. This fits the bill. I have found the gun to be reliable and I can shoot it well. Keep looking for one lighter! I've not had jamming problems. I think many problems with well designed autos jamming is the ammo. - J. M.
I was looking to purchase a Kel-tec PF 9, which was hard to find. I went to all the local shops and kept seeing the Kahr CW line. The Kahr just fit my hand, but my budget said Kel-tec... When I found a PF 9 I was excited and ready to go purchase it. Once I held it I knew it would not be a fun gun to shoot. So I waited another week, decided to step up to a 40 cal Kahr and have been thrilled with it. For the extra $100 it seems like a real gun, not a toy. It's lite but sturdy. Very tight though, first 30-50 rounds, had alot of misfeeds. Last week I shot 100 plus rounds of cheap Walmart ammo with no problems at all. I am very happy with this pistol. - J. G.