Hmmm, I wont have room for a regulator. Will the two AA (2 x 1.5v) work at 3v? I could use a low volt atty if nothing else, right?
If I can make this work, expecially at 3v, All you need is a 510 (or any) battery connector, a nail or something to fit down the center hole, and a washer. I had one (washer) lying around that almost fit, so I'm just doing a little filing, but there might be one at home depot that would fit off the shelf. And of course a Mini Maglite.
Might not be the best
mod, but it could pull double duty because the atty can be swapped back and forth with the light assy. This one already had a clicky switch tail cap, so I'm sure one can get them for those minimags that don't have them.