I can't speak to Kahr's current QC but I did own a PM45 when they first came out. I had more than one issue with it and to their credit they made it right including a return trip on their dime to polish the feedramp and they wound up replaicing the barrel. Bought a PM9 at the same time as the 45 and it has been flawless, not an issue. So, maybe it's luck of the draw or it could be a sign to steer clear of new products

Hindsight can give us perspective on life in general but more so with guns. During my issues with the PM45 I was ticked, I laid out nearly $600 bucks for a carry gun I had carefully selected and it wouldn't run. So, I understand how the OP feels and if you've never had an issue then good for you. I will say I've never understood the break in period they described going in and thought they were full of it as I have owned more than my share of firearms and they ran right out of the box. Namely, Smith and Wesson, Colts, Aresenal and Glocks.