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Use a Pachmayr magazine sleeve to take up the space;

https://www.amazon.com/gp/product/B01KU5TXHU/ref=od_aui_detailpages00?ie=UTF8&psc=1

Back on May 1st I bought one of the PM45 models for my CM45, and it works just fine. It takes a little practice on your draw to deliberately snag the "beak" but otherwise it serves well by covering...

Probably just their own unbranded holster:

http://www.kahr.com//p380-holsters/kahr-belt-slide-holster-black-accpp036blk.asp

Actually, "P" stands for "polygonal" and "C" stands for "conventional", as in rifling.

I'd say the new "S" stands for "sport", since these are geared toward sport shooters.

The slide stop doesn't look very black. Did you get your parts from Kahr? I was thinking of doing that myself, and already started with a custom aluminum slide plate from NDZ Performance via Amazon. ...