I was asked to make a grip and a butt plate for a 9mm Masterpiece Arms "mini" carbine. I developed it in pine and did the final in alder with cherry stain. I have a lip around the edged of the butt plate so it fits snugly over the metal. On the grip, I have stand-off buttons so only the 8 buttons are in contact with the metal. I sent pictures to Masterpiece Arms to see if they are interested.
Clint