AICS Compatible 3 shot mags - 308 Length

Hello - I'm looking for one of these (AICS 3 shot mag) for a project but I can't find any NZ supplier.

Has anyone seen them in their travels?? Have there been any supplied with rifles sold in NZ??

Thanks

Watching with interest.
The only thing I can think off is to get a gunsmith to cut down a 5 shot one (like we used to do with the 10 shot 303 mags back in the day)

Supposedly the Ruger Gunsite ones might fit with a bit of adjustment here and there . . . when I find one I'll give it a try