DIY undercutting trigger guard

[d_striker]

I plan to do this very soon as well. I'm comfortable sanding down the grip and stipling but this will be my first go at the double undercut. My carry glock has a trigger guard that was undercut by Boresight solutions that I plan to use as a rough guide. Do you guys mark the trigger gaurd before hand to ensure you don't go to far and to give you a rough outline or do you just do it by feel a little at a time?

I also read some people using a wooden dowel with sand paper vice the dremel. Anybody use this technique?

I've used both a dremel and a dowel. IMO, a dowel yields a more consistent undercut.

[zachvu]

Did this last night, and couldn't be happier! I marked where my fingers lined up, and cut from there. Nothing better than a gun being custom fit to your hands and grip!!