What other PCCs (other than ARs) use Colt style 9mm AR mags?

Thanks.

Well the Uzi is one (Sort of)

Colt mags are modeled after Uzi mags and one can mod Uzi mags to fit in Colt pattern 9mm ARs.  The converted mags will still fit and function in an Uzi carbine.

Uzi mags don't have a bolt hold open follower for AR - so that is one caveat.

A few years back Uzi mags were much cheaper than Colt style 9mm AR mags and many were converting.

Most military Uzi mags are very well made.  When I did my conversions I cut slots with a mill I had to use a carbide end mill as the IMI mags were that hard!  Very tough mags.
If you mod Uzi mags, a grinder and or dremel is easiest, way

If I remember correctly, the Atlantic Firearms AKX-9 uses Colt pattern 9mm mags.

The Tavor 9mm uses Colt pattern magazines.

Taurus CT9 Wait, it's an Uzi mag.