Things You'll Need
Instructions
Disassemble your pistol and remove the grip from the rest of the pieces.
Prepare your rotary tool with a small grinding wheel and put on your safety glasses.
Turn on your rotary tool and carefully begin to grind the finger grooves off the grip. Grind them down in small increments, taking care not to gouge holes in your grip. Once you have sufficiently ground down the finger grooves, turn off your rotary tool and smooth out the surface with your sandpaper.