I haven't seen anyone modding the new ML100, sort of understand why, given the price increase from standard C mag this isn't as economical of a host as it used to be.
I've been playing with mine for a while, gone through three levels of modding, it does appears to be a lot harder to mod than the older incan mags. I don't think Mag modding on the new ML platform will be see much potential, I did these to satisfy my curiosity.
Level I mod:
The first thing I did when I got the ML100 was to cut it down to run 18650.
I used method #2 as reviewed in this CPF thread: http://www.candlepowerforums.com/vb/showthread.php?313709-Hand-cut-Mag-D-like-a-Human-Lathe
The ML100 shorty is seen to the left. I like the slim look of the new head,the new Mag C led platform packed some real innovations hasn't seen from previous mags. To list a few:
- Led Centering Mechanism: One can center the led to any direction, 360 degrees.
- Electronic switch: single tap = momentary, double tap =High & triple =low.
- A new mechanism for focusing but rotating the shell of mag head only.
Here is a peek under the head shell, the rubber looking ring controls the white post in the center in terms of led centering. The white post appears suspended by the control ring & can be tilted to any direction.
Level II mod:
I enjoyed my ML100 in the shorty state for few month & started to get itchy on modding it again, it throws very well, about 22 Klux from only 136 lumen source (Cree xpe), but the hot spot is tiny, also the spot has a slight donut no matter how well you focus it.
I decided to try out a large optics to see if I could make a poor man's M3LT out of it. The optics below is a fairly new product, a large 45mm TIR lens, the Gaggione LLC49R. This is the biggest TIR I've seen out side of surefire. After removing the tabs at bottom & one on the side as well, It fits in the ML100's smaller head perfectly:
Here are some beam shots of stock reflecter vs. 45mm TIR lens. Distance is 31.5 feet. Both are Manual exposure. 1/10 sec. ISO 200. F3.3
Stock Reflesctor: Very narrow beam & small hot spot, slightly over one feet diameter at 31.5 feet distance. slight donut no matter how I focus it.
With 45mm TIR lens: Larger hot spot, Perfect shape, no hint of donut, no un-eveness. But it's less bright than the reflector version. I prefer this larger spot, used it mostly indoors, I especially enjoyed the TIR beam, it has better beam quality than the Surefire M3LT (M3LT has a square hot spot) but not as bright ( M3LT about 20 Klux per TurboBB review).
Measured lux at 31.5 feet (9.6 meter)
Stock Reflector: 230 lux
45mm TIR Lens: 168.0 lux
Lux @ 1 meter converted from 9.6 meter readings:
Stock Reflector: 21,197 lux@ 1meter
45mm TIR Lens: 15,482 lux@ 1meter
Finally, tail cap current:
Hi 650ma (about 4-5 hrs run time on 18650)
low 175ma (over 30 hrs run time on 18650)
Level III mod:
I didn't want to put XML in there, as it'll be too wide of a beam, however, now I have Nichia 219 92CRI led coming in the mail, I decided to take it to another level.
I was stomped immediately, I could not unscrew the retaining ring even after drilling two holes to use my ring plier. So I drilled it open & cut it out instead, brute force always wins 
After that, the rest of the head pieces easily unscrew apart:
After unscrew the head, the led module freely moves up & down. The focus is achieved by rotating the focus ring as seen in the picture, it has a slope inside, while rotating, it pushed the knob down, inturn pushed module down. The module bounce back up every 1/2 a turn, supported by a spring between module & switch.
I take out the guts for the led centering mechanism & ground up a copper rod into shape:
I think I am pretty much done besides waiting for the Nichia 219 to come in...
