3 or 5 round AICS mags for 6ARC/6.5 Grendel?

[HandgunHTR]

Does anyone make (or provide relatively inexpensive modifications to make) a 3 or 5-round AICS mag for the 6.5 Grendel/6 ARC? I have a Ruger American in 6.5G that I would like to put in a KRG Bravo or MDT Oryx chassis, but I have no need for a 10 or 12-round magazine.

Any options out there?