When last we visited this subject, I’d replaced the front sight with a Mepro shotgun bead. It works. Problem was, it sits on top of the original rear sight and overpowers it; that glowing bead is great in dim light, but for aimed fire in good light, this combination isn’t the best. So I’ve been looking for some suitable iron sights.
Lots of looking, trying to find some suitable iron, then something someone said at some point(isn't that precise?) came to mind and I checked the Kahr site: well, well, well. They have parts, including the sights. And some of the Kahr pistols are small…
I picked the rear sight from the P380: dovetails in, white line in the center. It’s a little wider fore-to-aft in the base than the original, much wider side-to-side. The side-to–side isn’t a problem: a little sanding and polishing. The fore-to-after requires more work. Did some measuring and thinking, and found that the dovetail angle on the slide and the new sight matches a equilateral triangular(or three sided, if you want to be precise) file nicely, so I took a file(bought a new one for the purpose) and ground two sides smooth(‘safe’) so only one side can cut. It also made the file a little slimmer: it wouldn’t fit into the dovetail, but after the grinding(on the belt sander) it slipped in nicely. The bottom- being safe- could slide smoothly and keep the file level. So was able to make a few strokes on the front angle of the dovetail, try the sight, turn the slide and make a few on the rear, try, and so on. Only took a few minutes to reach the point the sight would slide in about halfway under finger pressure, and some taps with a punch and the 2oz. hammer took it the rest of the way. So here’s how it looks now:
The rear of the sight, around the slot, is undercut to prevent reflection, and it’s a wide slot: wide enough that that shotgun sight fills it with just a tiny line of daylight on each side(this is after I ground/polished the sides of the sight to fit it to the slide).
The other mod I want to do is the safety. I'm thinking cut a wide groove in it, and solder in a piece to give it more of the shape of a 1911 safety. Then, if I get REALLY picky, figure a way to give the safety a click for on & off.