Tough questions to answer but here's my take: Don't expect their highly polished finish to be bright like chrome. It is a "notch" brighter than the matt finish but with the proper equipment, you can polish it to a much brighter shine. I recently acquired a K9 Elite 98 (I'm in the 10 day wait period for clearance) and I did not see the finish as highly polished. When I get it, I can post a photo of this gun against my PM9 and CW45 both with a matt finish.
Night sights on other guns are, to me, only so-so. Don't expect to see them glow like an LED. I am totally indifferent to night sights and will not consider them as a deal breaker or a must have feature.
The thickness of the slides between 40 S&W and 9 is not noticeable. If your choice is between 40 S&W and 9mm, remember, both these rounds are high pressure (30k+ PSI) as opposed to a 45ACP (16k PSI). The well known kick, flip, snap of the 40S&W can be a bitch in controlling the gun. The recoil from high pressure gases pushing a 180 grain bullet is nasty, whereas the recoil from low pressure gas pushing a 185 grain bullet (45ACP) isn't nearly as nasty. As a hand loader, I download the 40 S&W by using a mild recoil powder which helps in the control of that beast cartridge. In a small gun like the MK40, hang on if you buy commercial ammo. If you are new into shooting, I would go with the 9mm over the 40 S&W in a small gun like the MK40.
Keep us posted on your choice. These Kahr guns are terrific and well engineered. Justin Kahr really figured out how to make a semiauto.
Night sights on other guns are, to me, only so-so. Don't expect to see them glow like an LED. I am totally indifferent to night sights and will not consider them as a deal breaker or a must have feature.
The thickness of the slides between 40 S&W and 9 is not noticeable. If your choice is between 40 S&W and 9mm, remember, both these rounds are high pressure (30k+ PSI) as opposed to a 45ACP (16k PSI). The well known kick, flip, snap of the 40S&W can be a bitch in controlling the gun. The recoil from high pressure gases pushing a 180 grain bullet is nasty, whereas the recoil from low pressure gas pushing a 185 grain bullet (45ACP) isn't nearly as nasty. As a hand loader, I download the 40 S&W by using a mild recoil powder which helps in the control of that beast cartridge. In a small gun like the MK40, hang on if you buy commercial ammo. If you are new into shooting, I would go with the 9mm over the 40 S&W in a small gun like the MK40.
Keep us posted on your choice. These Kahr guns are terrific and well engineered. Justin Kahr really figured out how to make a semiauto.