Power Custom Grip Frame Length

Are the Power Custom grip frames longer similar to SBH and/or Hunter?

Or standard like the XR3 derivations?

Did use the search function. While no definitive answers, hints seem to favor that the PC grip frames are of the same length as XR3.

You're right because the PC standard 'plow handle' grip frames are all Colt dimensions, and the XR3 grip frame was almost an exact copy of the Colt grip frame.

So the PC GFs require grips made for Colt SAAs.