This is my most Frankenstein-y since its all the parts came separately and I've modified each of those parts. I begrudgingly refer to it as the MiniTrip:
Head: Reshaped/polished Fivemega finned monstrosity as can be seen in its original form here. The lens opening is so small I knew once I got it that it would eventually get used on a triple 20mm optic. Its one redeeming quality is that it is shorter than a typical Surefire/Solarforce head.
Tail: Solarforce S7 with McClicky. Not a budget mod, but I already had it on hand and it is short. (see the trend here?) :)
Body: L2M with threads that have been shortened to minimize gap caused by using the S7.
Light Engine: Triple neutral XP-G with a NANJG 105C driver and a wide optic (40 degree I think). Very similar to dorpmuller's recipe... only shorter. :p
Battery: Bestinone.net IMR 18350
The funny thing is...I don't like it at all. Its too short, fat , and heavy. At 2.8A, it gets hot fast too. I'll probably swap out the L2m body and move everything else to an L2.