From Rick Steele, Area 5 Director
"We talked about this at the Board meeting. We are trying to make it easy for the shooter to try the Division without putting out a lot of money. If you machine the slide for the dot and then remove the dot, you will need to fill the machined area with a plate of similar material (steel in most cases) to make it look like a production gun. That will probably depend on how deep you machine the slide. Troy McManus will be the deciding factor as we walk through the issues in this new division.
Since this is a provisional division the ruling on that may change but that is what the Board talked about at the meeting.
You can also use a dovetail mount. It will make the dot a little higher than normal sights but it is very easy to return it to a Production gun."