I don't think that will help with grip much, it takes the same mags as the full size.cmgee67 wrote:HK. They have the VP9 sk which is the compact if that helps
On the full size the small grip panels are pretty narrow in my opinion. If he takes her to a store I would ask them to see the other panels and change them out (out the box all 3 are medium on the gun). It is a single roll pin which can be done with no disassembly of any other part of the gun.