I talked with Hennings (the famous CZ and Witness gunsmith) as well as with Novak (in fact the man himself!) about this a few years ago. Hennings opinion is that Sarsilmaz, the manufacturer uses their own cut. Novak's says they'd machine a new cut in there and make a standard sight fit it. Maybe they have worked on one now. I had the measurements of my sights, and both people felt that they had nothing close.

Most of the local yokels here in VA's educated opinion is that it's not a 1911 so I should FOAD.

One of the risks you're running is that Armalite and Sarsilmaz claim the slide is forged steel, and judging by the tool marks on mine, that steel is pretty darn hard. It may trash the cutting tool used and make the cut inconsistent.

If I could find a listing of the dimensions of common sights, I could compare my measurements and say for sure, because I would have ordered them. Alas, they're a closely guarded secret, and I am not hot on the idea of buying every kind of sight out there to try.