They are the Super Competition - kinda recessed rim - like on a regular 9mm case.
I sold my EAA Witness - and they worked fine it it.
I let that go when I bought a .357 Sig. barrel (Storm Lake) for my GLOCK .40 S&W.
The .357 Sig can use the same magazines as in the Glock .40.
They have 10-rd., 13-rd., 15-rd., 22-rd. and now 29-rd. Glock mags.
--- Way more than the Witness 10 and 17-rd .... lighter too.
I found this ammo recently after going thru boxes for my garage sale.
I have a Witness mag for 38 Super/9mm too.
I'll throw that in for free.
(Yes, you can buy a Witness barrel for either 9mm or .38 Super conversion - same mag.)