Welcome!
Congrats!
I have no idea about the DLC treatment but it suppose to be corrosion resistant. I have not see any torture test for Kahrs either. If any of the members have any info, they sure will post it. But I can start you with this DLC info.

__________________
Support the NRA 100%
A Conceal Carry Handgun Must Meet Four Conditions:
1) It must be utterly reliable.
2) It should be compact enough to be carried concealed for long periods of time.
3) It should have a very simple operating drill.
4) It should fire a cartridge of sufficient power.