Contact Pete Carber at Custom Arms Co (CAC).
He does this as part of his grip frame reduction package. His website is : http://www.customarms.com. He just moved his shop from Penndel,PA to Bensalem,PA - new phone number is 215-633-7478. Pete does exceptional work and is a pleasure to deal with.
I use a sanding wheel and remove the grooves then alternate to finer grits until smooth.
Once the surface is smooth I take a large sheet of skateboard tape and using a small rubber malet tap the grit into the frame.
The resulting texture is almost identical to the first generation Glocks and does not require additional finishing, painting, or epoxy work.
My didgital camera was "liberated" by some evil person so I cannot post a pic yet..
When I purchase a new camera I will post a pic.
Although the finish really does look like a first generation gun.
Just thought I'd update in case someone searched and came up with this thread.
First, I chicken'd out and traded the 23 for a Second generation G-19. Thought it was a decent move till last week.
Ran into a guy at the range shooting a G-23, we got talking he had same issue as me and showed me what he had done. First it turns out the grooves actually did fit OK it was the trigger guard that was pushing my fingers down off them (Didn't realize that). He had shaved the bottom of the trigger guard to give just a bit more room at the top and cut the "lip" at the front bottom of the grip into the same half-moon shape cut as second generation guns have and added a pierce mag bottom that fills this whole (another 1/4" or so room at the bottom). All done with a dremel.
Accckkk!! It felt like it was made for my hand and he had no interest in parting with his and my 23 and hi-caps long gone. So ends the sad tale of Blueduck :sad: