Lightning, I'm sorry for the issues you and your son are having, I've been going through the same thing with another gun recently.
As for my impression of the Kahr P380, I received it yesterday at my dealer/range. Opened it up and did a light cleaning and oiling. Now I have owned a couple of these little mouse guns and I have to say that the overall feel and look of this gun is what you would expect for one that costs 2x what the others are going for. It is a little heavier than say an LCP or KT and it felt solid in my hand.
Of course after my recent dealings with another pocket .380 and the cost of ammo I was quite apprehensive.
I'll keep my range report quick: ~250 flawless rounds of various brands and I am now loving this gun. No failures of any kind and boy is it accurate. I usually don't bother shooting mouse guns past 5 yards, but it was so accurate I tried it at 7 and was grouping 3" shots, and at 10 yards 6" groups with no problem.
Felt recoil is very light and I believe that the 5.25 lb trigger pull reported is accurate. The trigger is also wide and smooth and I had no trouble with it biting my finger even after 250 rounds.
As of now I am very pleased with this little gun and have a good feeling it will be riding in my pocket for some time to come. Here's to hoping my search for the right pocket gun is over.
