Cool. Let me know if it makes the grip feel akward. My wife has a G19 that we may be interested in getting one for. I am just concerned about how it feels with that extra width.
I have a G-21 with a LaserMax in it. My son, the Cop, has had it "borrowed" for a couple years. The LaserMax is expensive but wonderful. It installs completely inside the pistol with no modifications or gunsmithing and you can't see it until it is turned on.
The brochure says batteries last one year but mine are from 1996 and are still working fine. LaserMax is the one used by the US Air Force and the USMC M.P.'s.
Good luck, leVieux