With the VERY tight tolerances right out of the box (my PM9 slide rattled less than some 1911s I've seen), there's no way they'd stand a chance at making a run anywhere near Glock's. Just ain't gonna happen.
They are very nicely made guns and the machine work and detail is top notch, but like already mentioned, they are VERY tight, and sometimes too tight. Take my PM9 for example. It was a total lemon from the get-go(several FTFs,trigger reset failure,etc) I sent it in (twice) and it still came back with the same FTF/jamming problems but the trigger reset problem was gone.
The point is, they are designed and machined well, but IMO they make their specs a little too tight and precise for what their polymer is capable of handling. I just don't think polymer guns with molded in rails stay in spec from the factory as well as machined steel does. I'd bet that's why Kahr has had trouble keeping their polymer handguns from coming back to the factory as often as they do. I wish they'd ease up just a tad on the tolerances over there at Kahr and allow a LITTLE slide rattle...they have a GREAT design for CCW, but they could be making alot more money if they built up a better reputation for reliability(especially on these internet forums). If only I could walk right into the Kahr/Thompson HQs, smack a few people up-side the head, and finally start spitting out some of the finest concealed carry weapons ever made. I'm telling you, their design is absolute genius, but they just freakin don't know how to apply it properly for me and you, the consumers.